326
FNUS55 KRIW 221036
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
436 AM MDT FRI MAY 22 2026
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
THERE WILL BE A 20 TO 30 PERCENT CHANCE FOR VIRGA SHOWERS OVER
ZONES 140, 414 AND 416 AFTER 1400 THIS AFTERNOON. WIND GUSTS UP TO
40 MPH WILL BE POSSIBLE FROM THE ASSOCIATED OUTFLOWS. OTHERWISE,
WINDS WILL BE LIGHT (15 MPH OR LESS) TODAY. SCATTERED MID TO HIGH
LEVEL CLOUDS WILL STREAM OVER THE AREA THROUGH THE DAY.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
THERE WILL BE A 20 TO 30 PERCENT CHANCE FOR VIRGA SHOWERS OVER
ZONES 286 AND 288 AFTER 1400 THIS AFTERNOON. THESE SHOWERS COULD
TRACK EASTWARD INTO THE BIGHORN AND WIND RIVER BASINS. WIND GUSTS
UP TO 40 MPH WILL BE POSSIBLE FROM THE ASSOCIATED OUTFLOWS.
OTHERWISE, WINDS WILL BE LIGHT (15 MPH OR LESS) TODAY. SCATTERED
MID TO HIGH LEVEL CLOUDS WILL STREAM OVER THE AREA THROUGH THE
DAY.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
THERE WILL BE A 20 TO 30 PERCENT CHANCE FOR VIRGA SHOWERS OVER
ZONES 277 AND 278 AFTER 1400 THIS AFTERNOON. WIND GUSTS UP TO 40
MPH WILL BE POSSIBLE FROM THE ASSOCIATED OUTFLOWS. OTHERWISE,
WINDS WILL BE LIGHT (15 MPH OR LESS) TODAY. SCATTERED MID TO HIGH
LEVEL CLOUDS WILL STREAM OVER THE AREA THROUGH THE DAY.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-231245-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY FOG EARLY IN THE MORNING.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......42 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........65-71 PERCENT.
24 HR TREND......29 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 9200-11200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS
77 TO 82. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 80. SOUTH WINDS
AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ283-231245-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......29 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........65-71 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......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.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......12 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......7 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 9400-11400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WEST WINDS
AROUND 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. LOWS 45 TO 50. HIGHS
77 TO 82. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 70S. SOUTH
WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER
70S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
WYZ285-231245-
SOUTH BIGHORN MOUNTAINS-
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......12 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......35 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........56-62 PERCENT.
24 HR TREND......41 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 7800-9800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. LOWS 48 TO 53. HIGHS
70 TO 75. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
SOUTH WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ281-231245-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS LATE IN
THE MORNING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......16 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......48 PERCENT DRIER.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 1200, THEN 6600-8000 FT
AGL.
SMOKE DISPERSAL.....GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......25 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
NORTHWEST 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.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......3400-5400 FT AGL UNTIL 1200, THEN 9000-11000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 40S. HIGHS IN
THE LOWER 80S. WEST WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE
MID 80S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 80S. SOUTH
WINDS AROUND 15 MPH.
WEDNESDAY
NOT AS WARM. PARTLY CLOUDY WITH CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ282-231245-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......16 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......43 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........57-63 PERCENT.
24 HR TREND......32 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
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.......2800-4800 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 10 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 1200, THEN 7600-9600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
WARMER. MOSTLY CLEAR. LOWS AROUND 50. HIGHS AROUND 80.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S. SOUTH
WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID
70S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ275-231245-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......14 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......35 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5600-7600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........56-62 PERCENT.
24 HR TREND......28 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 10
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
WARMER. MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN
THE LOWER 80S. WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S. SOUTH
WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 80S. SOUTH
WINDS AROUND 20 MPH.
WEDNESDAY
NOT AS WARM. PARTLY CLOUDY WITH CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS
IN THE MID 70S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 70S.
WYZ276-231245-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......15 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......36 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE EVENING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........58-64 PERCENT.
24 HR TREND......22 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......6 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.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 8400-10400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER
70S. WEST WINDS AROUND 10 MPH.
MEMORIAL DAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
UPPER 70S. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. SOUTHWEST
WINDS AROUND 15 MPH.
WEDNESDAY
COOLER. PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
WYZ287-231245-
OWL CREEK MOUNTAINS-
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS LATE
IN THE AFTERNOON. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......16 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......43 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE EVENING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........56-62 PERCENT.
24 HR TREND......33 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......9 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.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 9200-11200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. WEST WINDS AROUND 10 MPH.
MEMORIAL DAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S.
SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 70S. SOUTH
WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE MID 60S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ286-231245-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
SNOW SHOWERS EARLY IN THE AFTERNOON. SLIGHT
CHANCE OF THUNDERSTORMS LATE IN THE AFTERNOON.
CHANCE OF SHOWERS AND SNOW SHOWERS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....48-53.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......31 PERCENT DRIER.
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.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AND SNOW
SHOWERS EARLY IN THE EVENING. SLIGHT CHANCE OF
SHOWERS AND SNOW SHOWERS EARLY IN THE EVENING.
CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........69-75 PERCENT.
24 HR TREND......20 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
WEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....55-60.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH. GUSTS UP TO 20 MPH
UNTIL 1200, THEN 30 MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WEST WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
WEST WINDS AROUND 15 MPH.
MEMORIAL DAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S.
SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SHOWERS LIKELY, CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN
THE MID 50S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S.
WYZ140-231245-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW SHOWERS, SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......18 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST 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 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS EARLY IN THE EVENING. CHANCE
OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......10 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE MID 60S.
SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S. SOUTH
WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS, SNOW SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE
LOWER 60S. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS, SLIGHT CHANCE
OF THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN
THE UPPER 50S.
THURSDAY
MOSTLY SUNNY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.
WYZ415-231245-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......30 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE MORNING. CHANCE OF SNOW 20
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........69-75 PERCENT.
24 HR TREND......15 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....58-63.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......6 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.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 1200, THEN 7400-9000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS AROUND 40. HIGHS 63 TO 68.
SOUTH WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS, SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE
LOWER 60S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS, SLIGHT CHANCE
OF THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN
THE UPPER 50S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.
WYZ416-231245-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
AND SNOW SHOWERS LATE IN THE AFTERNOON. SLIGHT
CHANCE OF SHOWERS LATE IN THE AFTERNOON. CHANCE
OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......32 PERCENT DRIER.
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.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4200-6200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE EVENING. CHANCE OF SNOW 20
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-32.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......18 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN VERY GOOD TO
EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
PARTLY CLOUDY WITH CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 34 TO 39. HIGHS
58 TO 63. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS, THUNDERSTORMS
AND SNOW SHOWERS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN CHANCE OF SHOWERS, SNOW SHOWERS AND
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID
50S.
WYZ288-231245-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE AFTERNOON. SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....46-51.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......25 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4000-6000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SNOW SHOWERS EARLY IN
THE EVENING. SLIGHT CHANCE OF SNOW SHOWERS
EARLY IN THE EVENING. CHANCE OF SNOW 40
PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......28 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN
WEST AROUND 10 MPH. GUSTS UP TO 20 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 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 1200, THEN 7400-9400 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WEST WINDS
AROUND 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS 62 TO
67. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 60S.
SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS, THUNDERSTORMS
AND SNOW SHOWERS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
THURSDAY
MOSTLY SUNNY. CHANCE OF SHOWERS AND SNOW SHOWERS IN
THE MORNING, THEN CHANCE OF SHOWERS, SNOW SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S.
WYZ414-231245-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SNOW SHOWERS LATE IN THE
AFTERNOON. CHANCE OF SNOW 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......8 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......30 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6200-8200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........67-73 PERCENT.
24 HR TREND......21 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 1200, THEN 8000-9800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS 65 TO
70. SOUTH WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.
SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS. LOWS IN THE MID 30S. HIGHS IN THE
UPPER 50S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND SNOW
SHOWERS IN THE MORNING, THEN SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.
WYZ278-231245-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS LATE IN THE AFTERNOON.
CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....51-56.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......25 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS EARLY
IN THE EVENING. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........66-72 PERCENT.
24 HR TREND......22 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN EAST.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......11 DEGREES WARMER.
MIN HUMIDITY........19-25 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 20
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9600-11600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS 36 TO 41. HIGHS 70 TO 75.
SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ277-231245-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....52-57.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........22-28 PERCENT.
24 HR TREND......20 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 6400-8400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....31-36.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........59-65 PERCENT.
24 HR TREND......30 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 15 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
MIXING HEIGHT.......3800-5800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........18-24 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9000-11000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY. LOWS AROUND 40. HIGHS IN THE LOWER 70S.
WEST WINDS AROUND 10 MPH.
MEMORIAL DAY THROUGH TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE
OF SHOWERS AND THUNDERSTORMS. LOWS 37 TO 42. HIGHS 69 TO 74.
SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE LOWER 60S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 60S.
WYZ279-231245-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY. PATCHY FOG EARLY IN THE MORNING.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....53-58.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......27 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN WEST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........59-65 PERCENT.
24 HR TREND......30 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN WEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST
AROUND 25 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9600-11600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE MID 40S. HIGHS IN THE
MID 70S. WINDS GENERALLY LESS THAN 10 MPH.
TUESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SOUTH WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 60S.
WYZ289-231245-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......30 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN WEST
AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......32 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......5 PERCENT DRIER.
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 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN AROUND 25
MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9600-11600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. WINDS GENERALLY
LESS THAN 10 MPH.
SUNDAY THROUGH MEMORIAL DAY
PARTLY CLOUDY. LOWS 43 TO 48.
HIGHS 72 TO 77. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SOUTH WINDS AROUND 15 MPH.
WEDNESDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE
UPPER 60S.
THURSDAY
MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
WYZ300-231245-
CASPER MOUNTAIN-
436 AM MDT FRI MAY 22 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
PATCHY FOG EARLY IN THE MORNING.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........35-41 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5000-6800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....33-38.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........62-68 PERCENT.
24 HR TREND......34 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 0300, THEN
SOUTH AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
SATURDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......7 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 1200, THEN
WEST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN WEST
AROUND 25 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 1200, THEN 9400-11400 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 1200, THEN EXCELLENT.
FORECAST DAYS 3 THROUGH 7...
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. WINDS GENERALLY
LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS IN THE UPPER
60S. SOUTHWEST WINDS AROUND 10 MPH.
MEMORIAL DAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN
THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. SOUTH WINDS AROUND
10 MPH.
WEDNESDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
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