046
FNUS55 KRIW 211920
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
120 PM MDT TUE JUL 21 2026
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
MONSOONAL MOISTURE CONTINUES TO INCREASE ACROSS THE AREA, WITH
WEDNESDAY BEING THE DAY OF GREATEST MOISTURE. MINIMUM HUMIDITY
TRENDS ANOTHER 15 TO 25 PERCENT HIGHER WEDNESDAY, WITH SOME AREAS
SEEING NEARLY 40 PERCENT IMPROVEMENTS COMPARED TO TUESDAY. SHOWERS
AND THUNDERSTORMS WILL BE WIDESPREAD WEDNESDAY AFTERNOON AND
OVERNIGHT INTO THURSDAY. MODERATE TO HEAVY RAINFALL IS LIKELY, WITH
THE RISK OF LOCALIZED FLOODING.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
MONSOONAL MOISTURE CONTINUES TO INCREASE ACROSS THE AREA, WITH
WEDNESDAY BEING THE DAY OF GREATEST MOISTURE. MINIMUM HUMIDITY
TRENDS ANOTHER 10 TO 15 PERCENT HIGHER WEDNESDAY, WITH SOME HIGHER
ELEVATIONS AREAS SEEING 30 TO 40 PERCENT IMPROVEMENTS COMPARED TO
TUESDAY. SHOWERS AND THUNDERSTORMS WILL BE WIDESPREAD WEDNESDAY
AFTERNOON AND OVERNIGHT INTO THURSDAY. MODERATE TO HEAVY RAINFALL IS
LIKELY, WITH THE RISK OF LOCALIZED FLOODING.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
MONSOONAL MOISTURE CONTINUES TO INCREASE ACROSS THE AREA, WITH
WEDNESDAY BEING THE DAY OF GREATEST MOISTURE. MINIMUM HUMIDITY
TRENDS ANOTHER 10 TO 20 PERCENT HIGHER WEDNESDAY. SHOWERS AND
THUNDERSTORMS WILL BE WIDESPREAD WEDNESDAY AFTERNOON AND OVERNIGHT
INTO THURSDAY. MODERATE TO HEAVY RAINFALL IS LIKELY, WITH THE RISK
OF LOCALIZED FLOODING.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-222130-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE EARLY IN THE EVENING. PATCHY SMOKE
LATE IN THE NIGHT. SCATTERED THUNDERSTORMS IN
THE EVENING. SCATTERED SHOWERS THROUGH THE
NIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL LATE IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......29 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2100, THEN SOUTHWEST WITH
GUSTS TO AROUND 30 MPH UNTIL 2400, THEN
NORTHEAST AND GUSTY UNTIL 0300, THEN NORTH AND
GUSTY.
RIDGE TOP WINDS.....SOUTHEAST AROUND 20 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.15 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....84-89.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE EARLY IN THE
EVENING. SHOWERS AND SCATTERED THUNDERSTORMS IN
THE EVENING, THEN NUMEROUS SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......EAST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN NORTHWEST WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....EAST AROUND 20 MPH UNTIL 2400, THEN NORTH
AROUND 10 MPH.
CHC OF WETTING RAIN.70 PERCENT UNTIL 2400, THEN 55 PERCENT.
TRANSPORT WINDS.....EAST AROUND 20 MPH UNTIL 2400, THEN WEST AROUND
10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 1200-2200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....80-85.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHWEST AROUND 10 MPH UNTIL 1500, THEN NORTH.
GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER
90S. WEST WINDS AROUND 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE MID
90S. WEST WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE
MID 90S.
WYZ283-222130-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE THROUGH THE NIGHT.
SCATTERED SHOWERS AND THUNDERSTORMS IN THE
EVENING. ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL LATE IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......22 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN WEST WITH GUSTS TO
AROUND 25 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE LATE
MORNING AND EARLY AFTERNOON. SCATTERED SHOWERS
AND THUNDERSTORMS LATE IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE MORNING AND AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....82-87.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200. WINDS
NORTH AROUND 10 MPH WITH HIGHER GUSTS AFTER
1500.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AFTER MIDNIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
LATE IN THE EVENING. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....56-61.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......17 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.60 PERCENT UNTIL 2400, THEN 15 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS IN THE MORNING. SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE MORNING,
THEN CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....79-84.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4200-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS AROUND 60. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER
90S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE
LOWER 90S. WEST WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE
LOWER 90S.
WYZ285-222130-
SOUTH BIGHORN MOUNTAINS-
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE THROUGH THE NIGHT. SCATTERED
SHOWERS AND THUNDERSTORMS IN THE EVENING.
ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......17 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......EAST WINDS AROUND 15 MPH UNTIL 2100, THEN
SOUTHEAST UNTIL 2400, THEN NORTH UNTIL 0300,
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO
25 MPH.
RIDGE TOP WINDS.....EAST AROUND 20 MPH UNTIL 2400, THEN NORTHWEST.
CHC OF WETTING RAIN.20 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....EAST AROUND 20 MPH UNTIL 2400, THEN NORTH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
SCATTERED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....79-84.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN EAST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE EARLY IN THE
EVENING. SHOWERS AND SCATTERED THUNDERSTORMS IN
THE EVENING, THEN SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....56-61.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......15 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH UNTIL 2400, THEN
NORTHWEST.
CHC OF WETTING RAIN.65 PERCENT UNTIL 2400, THEN 45 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH UNTIL 2400, THEN WEST.
MIXING HEIGHT.......1200-3200 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....74-79.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.25 PERCENT UNTIL 1200, THEN 65 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3800-4600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY THROUGH SATURDAY
MOSTLY CLEAR. LOWS IN THE MID 60S.
HIGHS 84 TO 89. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 80S. WEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE
UPPER 80S.
WYZ281-222130-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE THROUGH THE NIGHT. SCATTERED
SHOWERS IN THE EVENING. ISOLATED THUNDERSTORMS
THROUGH THE NIGHT. ISOLATED SHOWERS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL UNTIL EARLY MORNING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....60-65.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........68-74 PERCENT.
24 HR TREND......20 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....EAST AROUND 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....EAST AROUND 15 MPH.
MIXING HEIGHT.......3600-5600 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....81-86.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........42-48 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST 10 TO 15 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE UNTIL EARLY
MORNING. SCATTERED THUNDERSTORMS IN THE
EVENING. NUMEROUS SHOWERS THROUGH THE NIGHT.
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
EVENING. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MIN TEMPERATURE.....60-65.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........79-85 PERCENT.
24 HR TREND......12 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH UNTIL 2100, THEN
SOUTHWEST UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.55 PERCENT UNTIL 2400, THEN 65 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 1200-1800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN SHOWERS
LIKELY AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....77-82.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.15 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 3400-4600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS AROUND 60. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS IN THE MID 60S. HIGHS IN THE
MID 90S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE
UPPER 90S. NORTHWEST WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE MID
90S.
WYZ282-222130-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE THROUGH THE NIGHT.
SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING. ISOLATED SHOWERS AFTER MIDNIGHT.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
IN THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....60-65.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........55-61 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH UNTIL 2100, THEN WEST
UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN SOUTHWEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
SCATTERED SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL IN THE AFTERNOON. SOME THUNDERSTORMS
MAY PRODUCE HEAVY RAINFALL LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....82-87.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200. WINDS
NORTH AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH
AFTER 1500.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING.
NUMEROUS SHOWERS AND SCATTERED THUNDERSTORMS IN
THE EVENING, THEN SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE LATE EVENING AND EARLY
MORNING. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......20 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN SOUTHWEST WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.50 PERCENT UNTIL 2400, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600-1400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS THROUGH THE DAY. SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE MORNING,
THEN CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....78-83.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4600-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS IN THE MID 60S. HIGHS IN THE
MID 90S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 60S. HIGHS IN THE
UPPER 90S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE
UPPER 90S.
WYZ275-222130-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
ISOLATED THUNDERSTORMS IN THE EVENING. ISOLATED
SHOWERS UNTIL EARLY MORNING. PATCHY SMOKE
THROUGH THE NIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE EVENING. CHANCE
OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH 15 TO 20 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
ISOLATED SHOWERS EARLY IN THE AFTERNOON.
ISOLATED THUNDERSTORMS IN THE AFTERNOON.
SCATTERED SHOWERS LATE IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....79-84.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE EARLY IN THE
EVENING. SCATTERED THUNDERSTORMS EARLY IN THE
EVENING. SCATTERED SHOWERS THROUGH THE NIGHT.
ISOLATED THUNDERSTORMS IN THE LATE EVENING AND
OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....56-61.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......19 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2100, THEN SOUTHWEST WITH
GUSTS TO AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTHEAST.
CHC OF WETTING RAIN.35 PERCENT UNTIL 2400, THEN 20 PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 400-1600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
UNTIL LATE AFTERNOON. CHANCE OF SHOWERS THROUGH
THE DAY. CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....76-81.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........45-51 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.
CHC OF WETTING RAIN.12 PERCENT.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
WARMER. MOSTLY CLEAR. LOWS IN THE MID 60S. HIGHS IN THE
MID 90S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE
UPPER 90S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE MID
90S.
WYZ276-222130-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE THROUGH THE NIGHT. SCATTERED
SHOWERS AND THUNDERSTORMS IN THE EVENING.
ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL EARLY IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....60-65.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......9 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE
MORNING. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE MORNING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....78-83.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........45-51 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHEAST AROUND 10 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1500, THEN WEST WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS EARLY IN THE EVENING, THEN
ISOLATED THUNDERSTORMS LATE IN THE EVENING.
SCATTERED SHOWERS IN THE LATE EVENING AND
OVERNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL IN THE EVENING. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....59-64.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......11 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.45 PERCENT UNTIL 2400, THEN 10 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....78-83.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........45-51 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4000-5000 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 61 TO 66. HIGHS IN
THE LOWER 90S. WEST WINDS AROUND 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE
LOWER 90S. WEST WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 60S. HIGHS IN THE UPPER 80S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 90.
WYZ287-222130-
OWL CREEK MOUNTAINS-
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS EARLY IN THE
EVENING. ISOLATED THUNDERSTORMS IN THE EVENING.
ISOLATED SHOWERS LATE IN THE EVENING. PATCHY
SMOKE THROUGH THE NIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE EVENING. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....60-65.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........53-59 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 25
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE UNTIL LATE
AFTERNOON. ISOLATED SHOWERS AND THUNDERSTORMS
IN THE MORNING. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE MORNING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL EARLY IN THE AFTERNOON. CHANCE
OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....77-82.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200. WINDS
NORTH AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH
AFTER 1500.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 30 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AFTER MIDNIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
LATE IN THE EVENING. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....57-62.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......19 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.55 PERCENT UNTIL 2400, THEN 35 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....73-78.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........48-54 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH.
CHC OF WETTING RAIN.15 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-4800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY THROUGH FRIDAY
WARMER. MOSTLY CLEAR. LOWS 61 TO 66.
HIGHS IN THE UPPER 80S. WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 60S. HIGHS IN THE UPPER 80S. WEST WINDS AROUND
10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE UPPER 80S. WEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE
UPPER 80S.
WYZ286-222130-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
PATCHY SMOKE THROUGH THE NIGHT. NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS IN THE
EVENING. ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL LATE IN THE EVENING. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....53-58.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......7 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN WEST.
CHC OF WETTING RAIN.25 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE EARLY IN THE MORNING. ISOLATED
SHOWERS AND THUNDERSTORMS IN THE MORNING, THEN
SHOWERS AND NUMEROUS THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL LATE IN THE MORNING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE AFTERNOON, THEN SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL LATE IN THE AFTERNOON.
CHANCE OF PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...60 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......15 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN EAST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 70 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
MIXING HEIGHT.......1600-3600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....53-58.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.60 PERCENT UNTIL 2400, THEN 20 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......600-1600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200, THEN 85 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3800-5000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER
70S. WEST WINDS AROUND 15 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND
15 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S. WEST
WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S.
TUESDAY
MOSTLY SUNNY. CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 70S.
WYZ140-222130-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE UNTIL EARLY
MORNING. SCATTERED SHOWERS AND THUNDERSTORMS IN
THE EVENING. ISOLATED SHOWERS AND THUNDERSTORMS
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND EARLY MORNING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....50-55.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......17 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH AND GUSTY UNTIL
2100, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....EAST 10 TO 15 MPH.
CHC OF WETTING RAIN.15 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED SHOWERS AND THUNDERSTORMS IN THE
MORNING, THEN SHOWERS AND NUMEROUS
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE MORNING AND EARLY AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE AFTERNOON. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
CHANCE OF THUNDER...70 PERCENT.
MAX TEMPERATURE.....75-80.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 60 PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1800-3800 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....49-54.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......7 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST 5 TO 10 MPH.
CHC OF WETTING RAIN.60 PERCENT UNTIL 2400, THEN 15 PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS LATE IN
THE MORNING, THEN SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....74-79.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST 5 TO 10 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 55 PERCENT.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS 49 TO 54. HIGHS AROUND 80.
SOUTHWEST WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S.
WYZ415-222130-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
SCATTERED THUNDERSTORMS IN THE EVENING.
SCATTERED SHOWERS THROUGH THE NIGHT. ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. PATCHY SMOKE
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....51-56.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....EAST 10 TO 15 MPH.
CHC OF WETTING RAIN.25 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED SHOWERS AND THUNDERSTORMS LATE IN THE
MORNING. SCATTERED SHOWERS AND THUNDERSTORMS
EARLY IN THE AFTERNOON, THEN NUMEROUS SHOWERS
AND THUNDERSTORMS LATE IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE MORNING AND AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...60 PERCENT.
MAX TEMPERATURE.....73-78.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......23 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND OVERNIGHT. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....48-53.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
CHC OF WETTING RAIN.60 PERCENT UNTIL 2400, THEN 35 PERCENT.
TRANSPORT WINDS.....SOUTH 5 TO 10 MPH.
MIXING HEIGHT.......400-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....72-77.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........49-55 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS 51 TO 56. HIGHS AROUND 80. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S. WINDS GENERALLY LESS
THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
WYZ416-222130-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED
SHOWERS AFTER MIDNIGHT. PATCHY SMOKE AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....51-56.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........73-79 PERCENT.
24 HR TREND......23 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.40 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
ISOLATED SHOWERS AND THUNDERSTORMS LATE IN THE
MORNING. SCATTERED SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE LATE MORNING AND
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......19 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH UNTIL 1500, THEN WEST.
GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........CLOUDY. SCATTERED THUNDERSTORMS IN THE EVENING.
NUMEROUS SHOWERS THROUGH THE NIGHT. ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE LATE EVENING AND EARLY
MORNING. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....49-54.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........79-85 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 15 MPH UNTIL 2400, THEN SOUTH
AROUND 5 MPH.
CHC OF WETTING RAIN.60 PERCENT UNTIL 2400, THEN 30 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......600-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........46-52 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4200-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS AROUND 50. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE UPPER
70S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. WINDS GENERALLY LESS
THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE LOWER 50S. HIGHS IN THE MID 70S. WINDS GENERALLY LESS THAN
10 MPH.
MONDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
WYZ288-222130-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AFTER MIDNIGHT. PATCHY SMOKE AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE EVENING. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....53-58.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........68-74 PERCENT.
24 HR TREND......16 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH UNTIL 2100, THEN
SOUTHWEST UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.45 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH UNTIL 2400, THEN WEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE MORNING, THEN NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS IN THE
AFTERNOON. PATCHY SMOKE EARLY IN THE AFTERNOON.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
LATE IN THE MORNING. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE AFTERNOON. CHANCE
OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........58-64 PERCENT.
24 HR TREND......18 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 60 PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
MIXING HEIGHT.......1800-3800 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND EARLY MORNING. CHANCE OF
PRECIPITATION NEAR 100 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....50-55.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......15 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.70 PERCENT UNTIL 2400, THEN 25 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......600-1600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS AND CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....69-74.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........57-63 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 70 PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3800-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER
70S. WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 70S.
WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND
10 MPH.
MONDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE UPPER 50S. HIGHS IN THE UPPER 70S.
TUESDAY
MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S.
WYZ414-222130-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING. ISOLATED SHOWERS
AND THUNDERSTORMS AFTER MIDNIGHT. PATCHY SMOKE
LATE IN THE EVENING. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
LATE IN THE EVENING. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....53-58.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......17 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH UNTIL 2100, THEN EAST
UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......600-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL LATE IN THE MORNING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....72-77.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......21 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS EARLY IN THE EVENING, THEN
ISOLATED THUNDERSTORMS IN THE LATE EVENING AND
EARLY MORNING. SCATTERED SHOWERS IN THE LATE
EVENING AND OVERNIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL UNTIL EARLY MORNING.
CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....49-54.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY UNTIL 2100,
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.50 PERCENT UNTIL 2400, THEN 20 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......400-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
IN THE MORNING. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....72-77.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4400-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS
AROUND 80. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS AROUND 80. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
IN THE MID 50S. HIGHS AROUND 80.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 80S.
WYZ278-222130-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN ISOLATED
SHOWERS AFTER MIDNIGHT. PATCHY SMOKE AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....54-59.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........73-79 PERCENT.
24 HR TREND......30 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN AROUND 10
MPH.
CHC OF WETTING RAIN.30 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 20 MPH UNTIL 2400, THEN AROUND
10 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS EARLY IN THE
MORNING. ISOLATED SHOWERS AND THUNDERSTORMS
LATE IN THE MORNING, THEN SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE MORNING AND AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....75-80.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......18 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1500, THEN WEST WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS IN THE
EVENING. NUMEROUS SHOWERS THROUGH THE NIGHT.
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE LATE EVENING AND EARLY
MORNING. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....51-56.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.50 PERCENT UNTIL 2400, THEN 35 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......600-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....74-79.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5200-7000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS IN THE MID
80S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID
80S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE MID
80S.
WYZ277-222130-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE IN THE EVENING.
ISOLATED SHOWERS IN THE EVENING. ISOLATED
THUNDERSTORMS THROUGH THE NIGHT. SCATTERED
SHOWERS AFTER MIDNIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL UNTIL EARLY MORNING.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....54-59.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......24 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH UNTIL 2100, THEN
NORTHEAST UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE MORNING, THEN NUMEROUS
SHOWERS AND SCATTERED THUNDERSTORMS IN THE
AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL LATE IN THE MORNING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON. CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....76-81.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......17 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS EARLY IN
THE EVENING. SCATTERED SHOWERS THROUGH THE
NIGHT. ISOLATED THUNDERSTORMS IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
EARLY IN THE EVENING. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE EVENING. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....52-57.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......11 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.35 PERCENT UNTIL 2400, THEN 15 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....75-80.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5800-7600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS IN
THE MID 80S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 80S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE
UPPER 80S.
WYZ279-222130-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
PATCHY SMOKE EARLY IN THE EVENING. SCATTERED
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN
ISOLATED SHOWERS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL LATE IN THE EVENING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MIN TEMPERATURE.....57-62.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......22 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHEAST WINDS AROUND 15 MPH UNTIL 2400, THEN
EAST UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY 4-7
MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 20 MPH UNTIL 2400, THEN EAST
AROUND 10 MPH.
CHC OF WETTING RAIN.15 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 20 MPH UNTIL 2400, THEN EAST
AROUND 10 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE AFTERNOON. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL LATE IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....78-83.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. NUMEROUS SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN SCATTERED
SHOWERS AND ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE HEAVY
RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
LATE EVENING AND EARLY MORNING. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MIN TEMPERATURE.....55-60.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......13 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.50 PERCENT UNTIL 2400, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 800-1800 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....76-81.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 5800-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S. HIGHS IN THE MID
80S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE
UPPER 80S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 50S. HIGHS IN THE UPPER 80S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S.
WYZ289-222130-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED THUNDERSTORMS IN THE
EVENING. SCATTERED SHOWERS THROUGH THE NIGHT.
PATCHY SMOKE EARLY IN THE EVENING. PATCHY SMOKE
LATE IN THE NIGHT. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
LATE IN THE EVENING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......20 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......EAST WINDS AROUND 15 MPH UNTIL 2100, THEN
NORTHWEST UNTIL 2400, THEN WEST UNTIL 0300,
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO
25 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
CHC OF WETTING RAIN.30 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 20 MPH UNTIL 2400, THEN NORTH
AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE THROUGH THE DAY.
ISOLATED SHOWERS AND THUNDERSTORMS EARLY IN THE
AFTERNOON. SCATTERED SHOWERS AND THUNDERSTORMS
LATE IN THE AFTERNOON. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE AFTERNOON. CHANCE
OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....79-84.
24 HR TREND......4 DEGREES COOLER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......10 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHEAST AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. PATCHY SMOKE EARLY IN THE
EVENING. SHOWERS AND SCATTERED THUNDERSTORMS IN
THE EVENING, THEN SCATTERED SHOWERS AND
ISOLATED THUNDERSTORMS AFTER MIDNIGHT. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL EARLY
IN THE EVENING. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL IN THE LATE EVENING AND EARLY
MORNING. CHANCE OF PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....55-60.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
CHC OF WETTING RAIN.65 PERCENT UNTIL 2400, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1400-3400 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS LATE IN THE MORNING, THEN
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MAX TEMPERATURE.....75-80.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 30 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 4800-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN THE MID 80S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE
UPPER 80S. WEST WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS AROUND 60. HIGHS AROUND 90.
WYZ300-222130-
CASPER MOUNTAIN-
120 PM MDT TUE JUL 21 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED SHOWERS AND ISOLATED
THUNDERSTORMS IN THE EVENING. ISOLATED SHOWERS
AFTER MIDNIGHT. SOME THUNDERSTORMS MAY PRODUCE
HEAVY RAINFALL EARLY IN THE EVENING. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL LATE
IN THE EVENING. CHANCE OF PRECIPITATION 30
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....58-63.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......15 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 20 MPH UNTIL 2400, THEN SOUTH
AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 20 MPH UNTIL 2400, THEN
SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY SMOKE IN THE LATE MORNING
AND EARLY AFTERNOON. ISOLATED SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. SOME
THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....79-84.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........39-45 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHWEST AROUND 10 MPH UNTIL 1500, THEN
NORTHEAST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
WEDNESDAY NIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS AND SCATTERED
THUNDERSTORMS IN THE EVENING, THEN NUMEROUS
SHOWERS AND ISOLATED THUNDERSTORMS AFTER
MIDNIGHT. PATCHY SMOKE EARLY IN THE EVENING.
SOME THUNDERSTORMS MAY PRODUCE HEAVY RAINFALL
EARLY IN THE EVENING. SOME THUNDERSTORMS MAY
PRODUCE HEAVY RAINFALL IN THE LATE EVENING AND
OVERNIGHT. CHANCE OF PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...40 PERCENT.
MIN TEMPERATURE.....56-61.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.70 PERCENT UNTIL 2400, THEN 55 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS LATE IN
THE MORNING, THEN SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...50 PERCENT.
MAX TEMPERATURE.....74-79.
24 HR TREND......5 DEGREES COOLER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......15 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH UNTIL 1500, THEN UPSLOPE/UPVALLEY
5-9 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.45 PERCENT UNTIL 1200, THEN 80 PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......2800-4800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER
80S. WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE
MID 80S. WEST WINDS AROUND 10 MPH.
MONDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS
AROUND 60. HIGHS IN THE MID 80S.
TUESDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 80S.
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