648
FNUS55 KRIW 141945
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
ISSUED BY NATIONAL WEATHER SERVICE CHEYENNE WY
145 PM MDT MON SEP 14 2026
...RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING FOR ZONES 279,
280, 283, 289 AND 300..
..HIGH WIND WARNING IN EFFECT UNTIL 2 PM MDT THIS AFTERNOON
DISCUSSION
...YELLOWSTONE NP AND TETON DISPATCH AREAS (INCLUDES FIRE WEATHER
ZONES 140...414...415...AND 416)...
DRY CONDITIONS CONTINUE THE REMAINDER OF TODAY WITH TEMPERATURES
UP TO 10 DEGREES COOLER THAN SUNDAY. GUSTY WINDS PUSH THROUGH THE EARLY
EVENING HOURS BEFORE DIMINISHING TOWARDS SUNSET BECOMING LIGHT
OVERNIGHT AND INTO TUESDAY MORNING. AS SUCH, MIXING AND SMOKING DISPERSAL
REMAINS VERY GOOD THROUGH SUNSET BEFORE BECOMING POOR THEREAFTER. OTHERWISE,
RH VALUES REMAIN ABOVE CRITICAL THRESHOLDS WITH GOOD RECOVERY OVERNIGHT.
..CODY DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 275...276
282...283...285...286...287...288...AND 289)...
***RED FLAG WARNING FOR ZONES 283 AND 289 FROM 12 PM TO 8 PM
TODAY***
DRY CONDITIONS CONTINUE THE REMAINDER OF TODAY WITH TEMPERATURES
UP TO 10 DEGREES COOLER THAN SUNDAY. GUSTY WINDS PUSH THROUGH THE EARLY
EVENING HOURS BEFORE DIMINISHING TOWARDS SUNSET BECOMING LIGHT
OVERNIGHT AND INTO TUESDAY MORNING. AS SUCH, MIXING AND SMOKING DISPERSAL
REMAINS VERY GOOD THROUGH SUNSET BEFORE BECOMING POOR THEREAFTER. OTHERWISE,
RH VALUES AT OR BELOW CRITICAL THRESHOLDS FOR ZONES 283/289 WITH OTHER ZONES
JUST ABOVE. GOOD RH RECOVERY EXPECTED OVERNIGHT.
..CASPER DISPATCH AREA (INCLUDES FIRE WEATHER ZONES 277...278
279...280...281...285...289...AND 300)...
***RED FLAG WARNING FOR ZONES 279...280...289 AND 300 FROM 12
PM TO 8 PM TODAY***
DRY CONDITIONS CONTINUE THE REMAINDER OF TODAY WITH TEMPERATURES
UP TO 10 DEGREES COOLER THAN SUNDAY. GUSTY WINDS PUSH THROUGH THE EARLY
EVENING HOURS BEFORE DIMINISHING TOWARDS SUNSET BECOMING LIGHT
OVERNIGHT AND INTO TUESDAY MORNING. AS SUCH, MIXING AND SMOKING DISPERSAL
REMAINS VERY GOOD THROUGH SUNSET BEFORE BECOMING POOR THEREAFTER. OTHERWISE,
RH VALUES AT OR BELOW CRITICAL THRESHOLDS FOR ZONES 279/280/289/300 WITH
OTHER ZONES JUST ABOVE. GOOD RH RECOVERY EXPECTED OVERNIGHT.
..THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS
WYZ280-152145-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
145 PM MDT MON SEP 14 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......18 DEGREES COOLER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN EAST
AROUND 10 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN EAST
AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....EAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3200-5200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
IN THE EVENING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....51-56.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......10 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHEAST WINDS 10 TO 15 MPH UNTIL 2400, THEN
SOUTH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
SLIGHT CHANCE OF SHOWERS IN THE AFTERNOON.
SLIGHT CHANCE OF THUNDERSTORMS LATE IN THE
AFTERNOON. CHANCE OF PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....76-81.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH UNTIL 1500, THEN
NORTHWEST. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 1200, THEN
NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 1200, THEN 6600-8600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.
NORTHEAST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER
70S. SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 70S.
WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 71 TO 76.
WYZ283-152145-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
145 PM MDT MON SEP 14 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......11 DEGREES COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 15 MPH UNTIL 2400, THEN NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........24-30 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200. WINDS EAST
AROUND 10 MPH AFTER 1500. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3400-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......1 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....73-78.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 5800-7800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.
LOWS IN THE UPPER 40S. NORTHEAST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 70S. WEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
71 TO 76.
WYZ285-152145-
SOUTH BIGHORN MOUNTAINS-
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......12 DEGREES COOLER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, 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.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........23-29 PERCENT.
24 HR TREND......5 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
10 TO 15 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3200-4800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....48-53.
24 HR TREND......11 DEGREES WARMER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......5 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 20 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....69-74.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 1500, THEN
NORTH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1200, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
NORTHEAST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WYZ281-152145-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....40-45.
24 HR TREND......13 DEGREES COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH UNTIL 2400, THEN AROUND 10 MPH WITH
GUSTS TO AROUND 30 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 25 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......3 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....50-55.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........59-65 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH UNTIL 0300, THEN
AROUND 10 MPH. GUSTS UP TO 35 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....69-74.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN
NORTH UNTIL 1500, THEN AROUND 20 MPH. GUSTS UP
TO 30 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 1200, THEN NORTH
AROUND 25 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3200-5000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. NORTH
WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. SOUTH
WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS AROUND 50. HIGHS IN THE UPPER 70S. NORTHWEST
WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
WYZ282-152145-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......11 DEGREES COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN WEST AND GUSTY
UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY 4-7 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 WEST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......UNCHANGED.
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 AROUND 5 MPH UNTIL 1200, THEN AROUND 15
MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 3800-5400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......4 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....EAST AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN
SOUTHWEST.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....70-75.
24 HR TREND......1 DEGREE COOLER.
MIN HUMIDITY........27-33 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN NORTH
AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 2800-4800 FT
AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 80S. 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 UPPER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
73 TO 78.
WYZ275-152145-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS 15 TO 20 MPH WITH GUSTS TO AROUND
35 MPH UNTIL 2400, THEN NORTHWEST AROUND 10 MPH
AND GUSTY UNTIL 0300, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN NORTHWEST
AROUND 10 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....63-68.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........20-26 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, 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.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3800-4800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......4 DEGREES WARMER.
MAX HUMIDITY........57-63 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....NORTHEAST AROUND 10 MPH UNTIL 2400, THEN
NORTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 2400, THEN NORTHWEST.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 2400, THEN 400 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
NORTHWEST 10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1200, THEN 2600-4200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
NORTHWEST WINDS AROUND 10 MPH.
THURSDAY
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 70S. 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.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
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.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 40S. HIGHS
72 TO 77.
WYZ276-152145-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
145 PM MDT MON SEP 14 2026
..HIGH WIND WARNING IN EFFECT UNTIL 2 PM MDT THIS AFTERNOON
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........59-65 PERCENT.
24 HR TREND......4 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHWEST AROUND 5 MPH.
MIXING HEIGHT.......2800-4800 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHEAST 10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 3600-5400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....45-50.
24 HR TREND......6 DEGREES WARMER.
MAX HUMIDITY........49-55 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......SOUTHEAST WINDS AROUND 10 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 2400, THEN WEST.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......2 DEGREES COOLER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN NORTH
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....NORTH 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 2600-4200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS
AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 48 TO 53. HIGHS 68 TO
73. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 60S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ287-152145-
OWL CREEK MOUNTAINS-
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......10 DEGREES COOLER.
MAX HUMIDITY........57-63 PERCENT.
24 HR TREND......2 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......NORTH WINDS 10 TO 15 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 30
MPH.
RIDGE TOP WINDS.....NORTH AROUND 20 MPH UNTIL 2400, THEN WEST
AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......2 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
10 TO 15 MPH. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 2800-4400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....44-49.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........50-56 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 20
MPH UNTIL 2400, THEN 10 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....66-71.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHEAST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....NORTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN NORTH.
MIXING HEIGHT.......600-2600 FT AGL UNTIL 1200, THEN 3800-5800 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. WINDS
GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE LOWER 70S.
WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE UPPER 60S.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 70.
WYZ286-152145-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
145 PM MDT MON SEP 14 2026
..HIGH WIND WARNING IN EFFECT UNTIL 2 PM MDT THIS AFTERNOON
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......5 DEGREES COOLER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 35
MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY 4-7
MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTHWEST
AROUND 5 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN SOUTH
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....37-42.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........58-64 PERCENT.
24 HR TREND......13 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH UNTIL 2400, THEN WEST AROUND 10 MPH
WITH GUSTS TO AROUND 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
WEDNESDAY
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...10 PERCENT.
MAX TEMPERATURE.....59-64.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1500, THEN SOUTHEAST WITH GUSTS TO
AROUND 25 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 1200, THEN SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 40 TO 45. HIGHS 60 TO 65.
WEST WINDS AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. 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 IN THE UPPER 50S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
WYZ140-152145-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN SOUTH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......11 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST 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 AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......5 DEGREES WARMER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......14 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 2400, THEN SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......6 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. WINDS GENERALLY LESS THAN
10 MPH.
THURSDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS
AROUND 40. HIGHS IN THE MID 60S. 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 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER
50S. WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS
60 TO 65.
WYZ415-152145-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....27-32.
24 HR TREND......3 DEGREES COOLER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
25 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 10 MPH UNTIL 2400, THEN SOUTHEAST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....61-66.
24 HR TREND......10 DEGREES WARMER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....35-40.
24 HR TREND......7 DEGREES WARMER.
MAX HUMIDITY........74-80 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 2400, THEN SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
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...10 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........36-42 PERCENT.
24 HR TREND......9 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
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 1200, THEN 5400-7400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE LOWER 40S. SOUTHEAST WINDS AROUND 10 MPH.
THURSDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS IN
THE LOWER 40S. HIGHS IN THE MID 60S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS
61 TO 66.
WYZ416-152145-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......18 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 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.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....57-62.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. CHANCE OF SHOWERS AFTER
MIDNIGHT. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING. CHANCE OF
PRECIPITATION 30 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......16 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN
SOUTHEAST AROUND 10 MPH WITH GUSTS TO AROUND 15
MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
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.....60-65.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......12 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS IN THE LOWER 40S. EAST WINDS AROUND 10 MPH.
THURSDAY
SHOWERS LIKELY AND CHANCE OF THUNDERSTORMS. LOWS
AROUND 40. HIGHS IN THE LOWER 60S. WINDS GENERALLY LESS THAN
10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE MID 30S. HIGHS IN THE UPPER 50S. WINDS GENERALLY LESS
THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 30S. HIGHS IN THE MID 50S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS
IN THE UPPER 50S.
WYZ288-152145-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........59-65 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 35
MPH UNTIL 2400, THEN DOWNSLOPE/DOWNVALLEY 4-7
MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....60-65.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
10 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
25 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. CHANCE OF SHOWERS 20 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....42-47.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........69-75 PERCENT.
24 HR TREND......4 PERCENT WETTER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
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.....64-69.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........38-44 PERCENT.
24 HR TREND......9 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.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 6400-8400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY 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.
THURSDAY
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
WEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S.
WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS 59 TO 64.
WYZ414-152145-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......2 DEGREES COOLER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
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.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....62-67.
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 1200, THEN
SOUTHWEST 10 TO 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 5000-7000 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......9 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2400, THEN SOUTHEAST AND GUSTY.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
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.....65-70.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......11 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST. GUSTS UP TO 25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6000-8000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY 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. SOUTHEAST WINDS AROUND
10 MPH.
THURSDAY
PARTLY CLOUDY WITH SHOWERS LIKELY AND CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE LOWER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 30S. HIGHS AROUND 60. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS IN THE MID 60S.
WYZ278-152145-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......7 DEGREES COOLER.
MAX HUMIDITY........71-77 PERCENT.
24 HR TREND......1 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 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.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2200-4200 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....64-69.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH WITH GUSTS TO AROUND 25 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 4400-6400 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. SLIGHT CHANCE OF THUNDERSTORMS EARLY
IN THE MORNING. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........81-87 PERCENT.
24 HR TREND......14 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 2400, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
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...10 PERCENT.
MAX TEMPERATURE.....65-70.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1200, THEN 6200-8200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. CHANCE OF SHOWERS AND SLIGHT CHANCE OF
THUNDERSTORMS. LOWS IN THE MID 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. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE MID 30S. HIGHS
IN THE UPPER 60S.
WYZ277-152145-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
145 PM MDT MON SEP 14 2026
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......6 DEGREES COOLER.
MAX HUMIDITY........72-78 PERCENT.
24 HR TREND......UNCHANGED.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
30 MPH UNTIL 2100, THEN DOWNSLOPE/DOWNVALLEY
4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......9 DEGREES WARMER.
MIN HUMIDITY........21-27 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH WITH GUSTS TO AROUND 30 MPH UNTIL
1500, THEN SOUTHWEST WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
MIXING HEIGHT.......400-2000 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING. CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS
AFTER MIDNIGHT. CHANCE OF PRECIPITATION 30
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......19 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 25 MPH UNTIL 2100, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH UNTIL 2400, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH 10 TO 15 MPH.
MIXING HEIGHT.......3200-5200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
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...10 PERCENT.
MAX TEMPERATURE.....67-72.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........29-35 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1200, THEN AROUND
20 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6400-8400 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE
LOWER 70S. WINDS GENERALLY LESS THAN 10 MPH.
FRIDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S.
WEST WINDS AROUND 10 MPH.
SATURDAY
CLEAR. LOWS IN THE MID 30S. HIGHS IN THE MID 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
HIGHS AROUND 70.
WYZ279-152145-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
145 PM MDT MON SEP 14 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....39-44.
24 HR TREND......8 DEGREES COOLER.
MAX HUMIDITY........53-59 PERCENT.
24 HR TREND......16 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 35 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2000-4000 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......13 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 15 MPH WITH GUSTS TO AROUND 30
MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTHWEST
AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1200, THEN 5200-7200 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
IN THE EVENING. CHANCE OF SHOWERS THROUGH THE
NIGHT. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......8 DEGREES WARMER.
MAX HUMIDITY........79-85 PERCENT.
24 HR TREND......37 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......2400-4400 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......UNCHANGED.
MIN HUMIDITY........40-46 PERCENT.
24 HR TREND......8 PERCENT WETTER.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......1600-3600 FT AGL UNTIL 1200, THEN 6200-8200 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY
GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY THROUGH THURSDAY
MOSTLY CLOUDY WITH CHANCE OF
SHOWERS AND SLIGHT CHANCE OF THUNDERSTORMS. LOWS 46 TO 51. HIGHS
IN THE LOWER 70S. SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS.
LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS AROUND 40. HIGHS IN THE UPPER 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 68 TO 73.
WYZ289-152145-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
145 PM MDT MON SEP 14 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....36-41.
24 HR TREND......13 DEGREES COOLER.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH UNTIL 2100, THEN NORTH AROUND 10 MPH
WITH GUSTS TO AROUND 40 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN
NORTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN
NORTHEAST.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....68-73.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........26-32 PERCENT.
24 HR TREND......9 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN SOUTH
AROUND 10 MPH WITH GUSTS TO AROUND 30 MPH.
RIDGE TOP WINDS.....EAST AROUND 10 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......400-2200 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. SLIGHT CHANCE OF SHOWERS
THROUGH THE NIGHT. CHANCE OF PRECIPITATION 20
PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MIN TEMPERATURE.....46-51.
24 HR TREND......9 DEGREES WARMER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......20 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......3000-5000 FT AGL UNTIL 2400, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
WEDNESDAY
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...10 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO
AROUND 30 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 7000-9000 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN CHANCE OF SHOWERS
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. EAST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE
LOWER 70S. SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT CHANCE
OF THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE LOWER 70S.
SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE UPPER 60S.
WINDS GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 67 TO 72.
WYZ300-152145-
CASPER MOUNTAIN-
145 PM MDT MON SEP 14 2026
..RED FLAG WARNING IN EFFECT UNTIL 8 PM MDT THIS EVENING
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....38-43.
24 HR TREND......17 DEGREES COOLER.
MAX HUMIDITY........56-62 PERCENT.
24 HR TREND......16 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......WEST WINDS AROUND 20 MPH WITH GUSTS TO AROUND
40 MPH UNTIL 2100, THEN NORTHEAST AROUND 10 MPH
WITH GUSTS TO AROUND 40 MPH UNTIL 0300, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 15 MPH UNTIL 2400, THEN EAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 20 MPH UNTIL 2400, THEN EAST
AROUND 10 MPH.
MIXING HEIGHT.......2600-4600 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....GOOD UNTIL 2400, THEN POOR.
TUESDAY
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.....67-72.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......16 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
AROUND 10 MPH UNTIL 1500, THEN WEST. GUSTS UP
TO 25 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 15 MPH UNTIL 1200, THEN SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 20 MPH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1200, THEN 4800-6800 FT
AGL.
SMOKE DISPERSAL.....POOR UNTIL 1200, THEN GOOD TO VERY GOOD.
TUESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY. SLIGHT CHANCE OF THUNDERSTORMS
EARLY IN THE EVENING. CHANCE OF SHOWERS IN THE
EVENING. CHANCE OF PRECIPITATION 50 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MIN TEMPERATURE.....49-54.
24 HR TREND......10 DEGREES WARMER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......17 PERCENT WETTER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......SOUTH WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
RIDGE TOP WINDS.....SOUTH 15 TO 20 MPH.
CHC OF WETTING RAIN.10 PERCENT UNTIL 2400, THEN ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 15 MPH.
MIXING HEIGHT.......1200-3200 FT AGL UNTIL 2400, THEN 600 FT AGL.
SMOKE DISPERSAL.....POOR.
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. CHANCE OF
PRECIPITATION 20 PERCENT.
CHANCE OF THUNDER...20 PERCENT.
MAX TEMPERATURE.....71-76.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......6 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 UNTIL 1200, THEN WEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1200, THEN 6600-8600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN VERY GOOD.
FORECAST DAYS 3 THROUGH 7...
WEDNESDAY NIGHT
MOSTLY CLOUDY. CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S.
WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE
LOWER 70S. SOUTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY WITH SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS AROUND 70. SOUTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY CLEAR. SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. LOWS IN THE LOWER 40S. HIGHS IN THE MID 60S. WINDS
GENERALLY LESS THAN 10 MPH.
SUNDAY THROUGH MONDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS 64 TO 69.
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