742
FNUS55 KRIW 160655
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
1255 AM MDT WED SEP 16 2026
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
MOISTURE WILL SPREAD NORTHWARD ACROSS THE AREA AND BRING A ISOLATED
TO SCATTERED SHOWERS AND THUNDERSTORMS (15 TO 30 PERCENT CHANCE),
WITH THE GREATEST COVERAGE IN ZONES 415 AND 416. WIND SHOULD REMAIN
LIGHT TO MODERATE EXCEPT IN AND AROUND ANY SHOWER OR THUNDERSTORM.
RELATIVE HUMIDITY WILL REMAIN ABOVE CRITICAL LEVELS. MIXING AND
SMOKE DISPERSAL WILL BE GENERALLY GOOD TO VERY GOOD. THE CHANCE OF
SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH AT LEAST FRIDAY.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
MOISTURE WILL SPREAD NORTHWARD ACROSS THE AREA AND BRING A ISOLATED
TO SCATTERED SHOWERS AND THUNDERSTORMS (15 TO 30 PERCENT CHANCE).
MAINLY TO ZONES 286, 276, 288 AND 289. ELSEWHERE, THE CHANCE OF
A SHOWER OR THUNDERSTORM IS LESS THAN 15 PERCENT. WIND SHOULD
REMAIN LIGHT TO MODERATE EXCEPT IN AND AROUND ANY SHOWER OR
THUNDERSTORM. RELATIVE HUMIDITY WILL REMAIN ABOVE CRITICAL LEVELS.
MIXING AND SMOKE DISPERSAL WILL BE GENERALLY GOOD TO VERY GOOD. THE
CHANCE OF SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH AT LEAST
SATURDAY.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
MOISTURE WILL SPREAD NORTHWARD ACROSS THE AREA AND BRING A ISOLATED
TO SCATTERED SHOWERS AND THUNDERSTORMS (15 TO 30 PERCENT CHANCE).
TO MOST OF THE AREA. THE GREATEST CHANCE WILL BE IN THE SOUTHERN
ZONES, WITH THE SMALLEST CHANCE IN ZONE 281. WIND SHOULD REMAIN
LIGHT TO MODERATE EXCEPT IN AND AROUND ANY SHOWER OR THUNDERSTORM.
RELATIVE HUMIDITY WILL REMAIN ABOVE CRITICAL LEVELS. MIXING AND
SMOKE DISPERSAL WILL BE GENERALLY GOOD TO VERY GOOD. THE CHANCE OF
SHOWERS AND THUNDERSTORMS WILL CONTINUE THROUGH AT LEAST SATURDAY.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-170900-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS LATE IN
THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....75-80.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH UNTIL 1500, THEN
WEST. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLOUDY. SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS EARLY IN
THE EVENING. SLIGHT CHANCE OF SHOWERS EARLY IN
THE MORNING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......4 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH.
RIDGE TOP WINDS.....NORTHEAST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST 15 TO 20 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY. SHOWERS LIKELY IN THE AFTERNOON.
CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......10 DEGREES COOLER.
MIN HUMIDITY........60-66 PERCENT.
24 HR TREND......33 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHEAST.
CHC OF WETTING RAIN.15 PERCENT UNTIL 1200, THEN 35 PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST.
MIXING HEIGHT.......1000-3000 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. NORTHWEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 74 TO 79.
WYZ283-170900-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....72-77.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN SOUTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS. CHANCE OF SHOWERS 20
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........66-72 PERCENT.
24 HR TREND......2 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......EAST WINDS 10 TO 15 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 35
MPH.
RIDGE TOP WINDS.....EAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST 10 TO 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......21 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......600-1800 FT AGL UNTIL 1200, THEN 2000-4000 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS AROUND 50. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S.
SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE MID 70S.
WYZ285-170900-
SOUTH BIGHORN MOUNTAINS-
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 1500, THEN
NORTHWEST. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........57-63 PERCENT.
24 HR TREND......6 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....NORTHEAST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST 15 TO 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS THROUGH THE
DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........52-58 PERCENT.
24 HR TREND......27 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. SOUTH WINDS
AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WEST WINDS AROUND 10 MPH.
SATURDAY
SHOWERS LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. NORTHWEST WINDS
AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS AROUND 70.
WYZ281-170900-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH HIGHER GUSTS
UNTIL 0900, THEN NORTHWEST WITH GUSTS TO AROUND
30 MPH UNTIL 1500, THEN NORTH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3400-5400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......4 DEGREES COOLER.
MAX HUMIDITY........66-72 PERCENT.
24 HR TREND......5 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
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 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN THE
LATE MORNING AND EARLY AFTERNOON. SLIGHT CHANCE
OF SHOWERS LATE IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........54-60 PERCENT.
24 HR TREND......27 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 35 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
CHC OF WETTING RAIN.5 PERCENT UNTIL 1200, THEN 25 PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. LOWS IN THE LOWER 50S. SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 70S.
WYZ282-170900-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN NORTH
AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1200, THEN 3000-5000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......3 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN NORTHWEST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING. CHANCE OF SHOWERS IN THE AFTERNOON.
CHANCE OF SHOWERS 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......400-1800 FT AGL UNTIL 1200, THEN 2200-4000 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS AROUND 80. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
NOT AS WARM. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE MID 70S.
WYZ275-170900-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 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.......400-2000 FT AGL UNTIL 1200, THEN 2400-4400 FT
AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......6 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 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 WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
AFTERNOON. CHANCE OF SHOWERS 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......400-1800 FT AGL UNTIL 1200, THEN 2000-3800 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS IN
THE MID 40S. HIGHS AROUND 70. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE MID 70S.
WYZ276-170900-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST 10 TO 15 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 2600-4200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....44-49.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......11 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS AROUND 10 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
AROUND 5 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN WEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE AFTERNOON. SLIGHT
CHANCE OF SHOWERS LATE IN THE AFTERNOON. CHANCE
OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........42-48 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......200-1800 FT AGL UNTIL 1200, THEN 2200-4200 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY. SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
MOSTLY CLOUDY. SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS
THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 70S.
WYZ287-170900-
OWL CREEK MOUNTAINS-
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH WITH HIGHER GUSTS UNTIL
1500, THEN NORTHEAST WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
SOUTHEAST.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....44-49.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........54-60 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTH WINDS AROUND 10 MPH AND GUSTY UNTIL 2100,
THEN DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE MORNING. SLIGHT CHANCE OF SHOWERS IN THE
LATE MORNING AND AFTERNOON. CHANCE OF SHOWERS
20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......400-1800 FT AGL UNTIL 1200, THEN 2000-4000 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH SHOWERS AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE LOWER 70S.
WYZ286-170900-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH UNTIL 1500, THEN
SOUTHEAST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......11 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE AFTERNOON. CHANCE OF
SHOWERS EARLY IN THE AFTERNOON. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 2400-4400 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
PARTLY CLOUDY. SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 50S. WEST
WINDS AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN
THE LOWER 60S.
WYZ140-170900-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......6 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS LATE IN
THE MORNING. SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE AFTERNOON. CHANCE OF SHOWERS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......25 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 30 PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SHOWERS LIKELY AFTER
MIDNIGHT. LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
MOSTLY CLOUDY WITH SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS IN THE LOWER 60S.
WYZ415-170900-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
SLIGHT CHANCE OF THUNDERSTORMS EARLY IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
EARLY IN THE EVENING. CHANCE OF PRECIPITATION
20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....40-45.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........78-84 PERCENT.
24 HR TREND......7 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SHOWERS AND CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. CHANCE OF PRECIPITATION 90
PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........64-70 PERCENT.
24 HR TREND......24 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......1400-3400 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLOUDY. SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS IN THE MID 60S.
WYZ416-170900-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS IN THE
LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF
SHOWERS IN THE LATE MORNING AND AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........39-45 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS IN THE EVENING. SLIGHT
CHANCE OF THUNDERSTORMS THROUGH THE NIGHT.
CHANCE OF SHOWERS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 40 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......4 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
EAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY. SHOWERS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........61-67 PERCENT.
24 HR TREND......22 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 40 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......600-2400 FT AGL UNTIL 1200, THEN 2600-4600 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH SHOWERS LIKELY WITH POSSIBLE
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN
THE LOWER 50S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS AROUND 60.
WYZ288-170900-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS THROUGH
THE DAY. SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. CHANCE
OF SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE MORNING. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......8 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
SOUTHEAST AROUND 10 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY. SHOWERS LIKELY IN THE AFTERNOON.
CHANCE OF PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........58-64 PERCENT.
24 HR TREND......19 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN SOUTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHEAST.
CHC OF WETTING RAIN.10 PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......400-2000 FT AGL UNTIL 1200, THEN 2200-4200 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY WITH SHOWERS LIKELY, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN
THE UPPER 50S. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE LOWER 60S.
WYZ414-170900-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS EARLY IN THE MORNING.
SLIGHT CHANCE OF SHOWERS EARLY IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS IN THE LATE
MORNING AND AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
EARLY IN THE MORNING. CHANCE OF PRECIPITATION
20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....41-46.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........79-85 PERCENT.
24 HR TREND......1 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
SOUTHEAST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........58-64 PERCENT.
24 HR TREND......20 PERCENT WETTER.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 50 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3000-5000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE MID
40S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS AND CHANCE OF THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S. WINDS GENERALLY
LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER
60S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 60S.
WYZ278-170900-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
MORNING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE DAY. SLIGHT CHANCE OF SHOWERS IN THE LATE
MORNING AND AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH UNTIL 1500, THEN UPSLOPE/UPVALLEY
5-9 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 4200-6200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY IN THE MORNING. CHANCE
OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....43-48.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
EAST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE MORNING. CHANCE OF SHOWERS THROUGH THE
DAY. CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......14 PERCENT WETTER.
20-FOOT WINDS.......EAST WINDS AROUND 10 MPH UNTIL 1200, THEN
UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....EAST AROUND 15 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.7 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 30S. HIGHS IN THE MID 60S. NORTHWEST WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 30S.
HIGHS IN THE UPPER 60S.
WYZ277-170900-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS UNTIL LATE
AFTERNOON. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE DAY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE AFTERNOON. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......15 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH UNTIL 1500, THEN UPSLOPE/UPVALLEY
5-9 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.10 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4200-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS
EARLY IN THE EVENING. CHANCE OF PRECIPITATION
20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....43-48.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS IN THE
MORNING. SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...30 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 20 PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3600-5600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S. WINDS GENERALLY
LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S. WEST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS IN THE UPPER
60S. WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS AROUND 70.
WYZ279-170900-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY CLOUDY.
CHANCE OF SHOWERS IN THE MORNING. SLIGHT CHANCE
OF THUNDERSTORMS THROUGH THE DAY. SLIGHT CHANCE
OF SHOWERS LATE IN THE MORNING. CHANCE OF
PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......20 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200, THEN ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
EVENING. SLIGHT CHANCE OF THUNDERSTORMS THROUGH
THE NIGHT. CHANCE OF SHOWERS AFTER MIDNIGHT.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....49-54.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.LESS THAN 5 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY.
CHANCE OF SHOWERS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 70 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......3 DEGREES COOLER.
MIN HUMIDITY........54-60 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH UNTIL 1500, THEN
SOUTH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.30 PERCENT UNTIL 1200, THEN 5 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......600-2400 FT AGL UNTIL 1200, THEN 3400-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 40S. SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S. WEST WINDS AROUND
10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 40S. HIGHS AROUND 70.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ289-170900-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS EARLY IN THE
MORNING. SLIGHT CHANCE OF SHOWERS. SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.5 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS UNTIL
EARLY MORNING. SLIGHT CHANCE OF THUNDERSTORMS
THROUGH THE NIGHT. CHANCE OF SHOWERS EARLY IN
THE MORNING. CHANCE OF PRECIPITATION 50
PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....44-49.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........73-79 PERCENT.
24 HR TREND......13 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
EAST 10 TO 15 MPH. GUSTS UP TO 35 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE
OF THUNDERSTORMS. CHANCE OF PRECIPITATION 70
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......6 DEGREES COOLER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......24 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.20 PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
MIXING HEIGHT.......600-1800 FT AGL UNTIL 1200, THEN 2000-4000 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY THROUGH SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 39 TO 44. HIGHS 67 TO
72. WEST WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 69 TO 74.
WYZ300-170900-
CASPER MOUNTAIN-
1255 AM MDT WED SEP 16 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
LATE MORNING AND AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
SHOWERS LATE IN THE AFTERNOON. CHANCE OF
PRECIPITATION 30 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......15 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 1200, THEN
WEST. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT UNTIL 1200, THEN 10 PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5200-6600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 30 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......2 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
NORTHEAST AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
THURSDAY
SKY/WEATHER.........MOSTLY CLOUDY. SHOWERS LIKELY IN THE MORNING.
SLIGHT CHANCE OF THUNDERSTORMS THROUGH THE DAY.
SHOWERS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 90 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......8 DEGREES COOLER.
MIN HUMIDITY........73-79 PERCENT.
24 HR TREND......31 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.25 PERCENT UNTIL 1200, THEN 60 PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
MIXING HEIGHT.......600-2200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
THURSDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. SOUTHWEST
WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. WEST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 66 TO 71.
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