515
FNUS55 KRIW 311202
FWFRIW
FIRE WEATHER PLANNING FORECAST FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
501 AM MST SAT JAN 31 2026
DISCUSSION
***THIS PRODUCT IS CURRENTLY AUTOMATED WITH NO DISCUSSION
AND WILL NOT BE REFRESHED WITH ALL FORECAST UPDATES. IT SHOULD
BE USED FOR PLANNING PURPOSES ONLY. IF YOU NEED ADDITIONAL FIRE
WEATHER INFORMATION, PLEASE CONTACT THE NWS OFFICE IN RIVERTON,
WYOMING. THE HUMAN WRITTEN DISCUSSION SECTION ALONG WITH THE FIRE
WEATHER FORECAST WILL RESUME REGULAR OPERATIONS SOMETIME IN
SPRING 2026.***
---THUNDERSTORMS IMPLY STRONG GUSTY AND ERRATIC WINDS---
WYZ280-312300-
NATRONA COUNTY/CASPER BLM-
INCLUDING THE CITIES OF CASPER AND MIDWEST
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....47-52.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........32-38 PERCENT.
24 HR TREND......UNCHANGED.
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 UNTIL 1100, THEN NORTHWEST 25
TO 30 MPH UNTIL 1600, THEN 15 TO 20 MPH.
MIXING HEIGHT.......400-1800 FT AGL UNTIL 1100, THEN 3000-5000 FT
AGL UNTIL 1700, THEN 600-800 FT AGL.
SMOKE DISPERSAL.....POOR UNTIL 1100, THEN GOOD TO VERY GOOD UNTIL
1600, THEN FAIR TO GOOD UNTIL 1700, THEN POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....30-35.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........56-62 PERCENT.
24 HR TREND......5 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
SOUTHWEST 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 AROUND 15 MPH.
MIXING HEIGHT.......400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1300, THEN 20 TO
25 MPH.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S.
HIGHS 45 TO 50. WEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS AROUND
50. SOUTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 20S.
HIGHS 52 TO 57.
WYZ283-312300-
UPPER WIND RIVER BASIN/WIND RIVER BASIN-
INCLUDING THE CITIES OF CROWHEART, LANDER, RIVERTON, AND SHOSHONI
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH UNTIL 1700, THEN AROUND
10 MPH.
MIXING HEIGHT.......600-2400 FT AGL UNTIL 1200, THEN 2000-4000 FT
AGL UNTIL 1700, THEN 600-800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-31.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2100, THEN
SOUTHWEST AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......600-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....49-54.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
SOUTHWEST AROUND 10 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-1600 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST
WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS AROUND 50.
WINDS GENERALLY LESS THAN 10 MPH.
TUESDAY
MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE MID
40S. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 20S.
HIGHS 51 TO 56.
WYZ285-312300-
SOUTH BIGHORN MOUNTAINS-
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....39-44.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......4 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH GUSTS TO AROUND
25 MPH.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1600, THEN AROUND 15
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH UNTIL 1000, THEN NORTHWEST
30 TO 35 MPH UNTIL 1600, THEN 15 TO 20 MPH.
MIXING HEIGHT.......1000-3000 FT AGL UNTIL 1700, THEN 200-600 FT
AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........57-63 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
15 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......200-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......9 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......200-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS
AROUND 10 MPH.
MONDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 25 TO 30. HIGHS
38 TO 43. WEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS 46 TO 51.
WYZ281-312300-
JOHNSON COUNTY/CASPER BLM-
INCLUDING THE CITIES OF BUFFALO AND KAYCEE
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-51.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 1200, THEN
NORTHWEST. GUSTS UP TO 20 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH UNTIL 1100, THEN NORTHWEST
UNTIL 1400, THEN 20 TO 25 MPH UNTIL 1600, THEN
AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH UNTIL 1000, THEN NORTHWEST
AROUND 25 MPH UNTIL 1100, THEN 30 TO 35 MPH
UNTIL 1600, THEN AROUND 25 MPH UNTIL 1700, THEN
AROUND 15 MPH.
MIXING HEIGHT.......400-1000 FT AGL UNTIL 1000, THEN 2200-3000 FT
AGL UNTIL 1100, THEN 3600-5600 FT AGL UNTIL
1600, THEN 2200-2800 FT AGL UNTIL 1700, THEN
600-800 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1100, THEN VERY GOOD UNTIL
1600, THEN POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....29-34.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........60-66 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....WEST AROUND 10 MPH UNTIL 0500, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH UNTIL 2400, THEN SOUTHWEST.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........25-31 PERCENT.
24 HR TREND......6 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN SOUTH
AROUND 10 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......400-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S.
HIGHS 46 TO 51. NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 50S. SOUTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS 55 TO 60.
WYZ282-312300-
SOUTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF TEN SLEEP, THERMOPOLIS, AND WORLAND
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-47.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........39-45 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTH 5 TO 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 1000, THEN
NORTHWEST UNTIL 1700, THEN SOUTH AROUND 5 MPH.
MIXING HEIGHT.......400-2400 FT AGL UNTIL 1300, THEN 1000-3000 FT
AGL UNTIL 1700, THEN 400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....24-29.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........68-74 PERCENT.
24 HR TREND......6 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. 10 MPH AFTER 1200
UNTIL 1500.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH.
MIXING HEIGHT.......400-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S.
HIGHS 46 TO 51. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS 52 TO 57.
WYZ275-312300-
NORTH BIGHORN BASIN/WORLAND BLM-
INCLUDING THE CITIES OF GREYBULL, LOVELL, AND POWELL
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....39-44.
24 HR TREND......1 DEGREE WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......7 PERCENT WETTER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 10 MPH
UNTIL 0900, THEN 10 MPH AFTER 1200 UNTIL 1500.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH UNTIL 1000, THEN WEST UNTIL
1200, THEN NORTHWEST UNTIL 1700, THEN SOUTH.
MIXING HEIGHT.......800-2800 FT AGL UNTIL 1700, THEN 400-800 FT
AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........70-76 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHEAST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST AROUND 10 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....43-48.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHEAST AROUND 10 MPH.
RIDGE TOP WINDS.....SOUTHEAST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHEAST 10 TO 15 MPH.
MIXING HEIGHT.......400-1400 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S.
HIGHS 45 TO 50. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S. HIGHS IN THE
UPPER 40S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS IN THE LOWER 50S.
WYZ276-312300-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........MOSTLY SUNNY THEN BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....45-50.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........30-36 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1500, THEN SOUTHWEST AROUND 10 MPH
AND GUSTY.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1500, THEN SOUTHWEST
AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1600, THEN AROUND 15
MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1700, THEN 600-1000 FT
AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....32-37.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........52-58 PERCENT.
24 HR TREND......3 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS TO
AROUND 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......600-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....50-55.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........28-34 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....SOUTHWEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......600-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
HIGHS 46 TO 51. WEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 30S. HIGHS IN THE
LOWER 50S. SOUTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 30S.
HIGHS 52 TO 57.
WYZ287-312300-
OWL CREEK MOUNTAINS-
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....43-48.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........31-37 PERCENT.
24 HR TREND......1 PERCENT WETTER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH UNTIL 1200, THEN SOUTH UNTIL
1400, THEN SOUTHEAST UNTIL 1700, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH UNTIL 1600, THEN
NORTHEAST UNTIL 1700, THEN SOUTHEAST.
MIXING HEIGHT.......200-2200 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....28-33.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........55-61 PERCENT.
24 HR TREND......7 PERCENT DRIER.
HUMIDITY RECOVERY...MODERATE.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. 10 MPH AFTER
0300.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......200-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....43-48.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 0900, THEN
UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1500, THEN
SOUTHWEST AROUND 10 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......200-800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. WEST WINDS AROUND
10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
HIGHS 42 TO 47. WINDS GENERALLY LESS THAN 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 30. HIGHS IN THE MID 40S.
WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
HIGHS 48 TO 53.
WYZ286-312300-
ABSAROKA MOUNTAINS/NORTH SHOSHONE NF-
INCLUDING THE CITY OF PAHASKA
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......BREEZY. WEST WINDS 20 TO 25 MPH UNTIL 1500,
THEN AROUND 15 MPH. GUSTS UP TO 30 MPH.
RIDGE TOP WINDS.....WEST 25 TO 30 MPH UNTIL 1500, THEN AROUND 20
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 25 TO 30 MPH UNTIL 1600, THEN AROUND 20
MPH.
MIXING HEIGHT.......800-2800 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....24-29.
24 HR TREND......2 DEGREES WARMER.
MAX HUMIDITY........63-69 PERCENT.
24 HR TREND......14 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 20 MPH.
MIXING HEIGHT.......400-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....39-44.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......7 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....WEST AROUND 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 20S. WEST WINDS
AROUND 15 MPH.
MONDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 20 TO 25. HIGHS
35 TO 40. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE LOWER 20S. HIGHS IN THE MID
40S.
FRIDAY
SUNNY. HIGHS IN THE MID 40S.
WYZ140-312300-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....33-38.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........65-71 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH UNTIL 1500, THEN
UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....17-22.
24 HR TREND......1 DEGREE COOLER.
MAX HUMIDITY........83-89 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....36-41.
24 HR TREND......5 DEGREES WARMER.
MIN HUMIDITY........56-62 PERCENT.
24 HR TREND......14 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
SOUTHWEST AROUND 10 MPH.
RIDGE TOP WINDS.....SOUTH 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH UNTIL 1300, THEN 15 TO
20 MPH.
MIXING HEIGHT.......400-2200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 15. WINDS GENERALLY
LESS THAN 10 MPH.
MONDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 12 TO 17. HIGHS
32 TO 37. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 13. HIGHS IN THE LOWER 40S.
FRIDAY
SUNNY. HIGHS IN THE LOWER 40S.
WYZ415-312300-
NORTH ZONE BRIDGER TETON NF AND GRAND TETON NP-
INCLUDING THE CITIES OF JACKSON AND MORAN
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN
BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....29-34.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........64-70 PERCENT.
24 HR TREND......UNCHANGED.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. 10 MPH AFTER 0900.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....14-19.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........82-88 PERCENT.
24 HR TREND......10 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 2200, THEN
SOUTHEAST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......400-1000 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....36-41.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........55-61 PERCENT.
24 HR TREND......14 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 10 MPH.
RIDGE TOP WINDS.....SOUTH AROUND 10 MPH UNTIL 1400, THEN SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 17. WINDS GENERALLY
LESS THAN 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS AROUND 15. HIGHS IN THE LOWER 30S.
WINDS GENERALLY LESS THAN 10 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 13 TO 18. HIGHS
32 TO 37. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 15. HIGHS IN THE LOWER 40S.
FRIDAY
SUNNY. HIGHS IN THE LOWER 40S.
WYZ416-312300-
WEST WIND RIVER MOUNTAINS/EAST ZONE BRIDGER TETON NF-
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....31-36.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........51-57 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......NORTHWEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 15 TO 20 MPH UNTIL 1700, THEN AROUND
10 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....17-22.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........75-81 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 0100, THEN NORTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....35-40.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........44-50 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN WEST
AROUND 10 MPH UNTIL 1500, THEN UPSLOPE/UPVALLEY
5-9 MPH.
RIDGE TOP WINDS.....NORTH AROUND 10 MPH UNTIL 0800. WEST AFTER
1100.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......200-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 17. WINDS GENERALLY
LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS 12 TO 17. HIGHS IN
THE LOWER 30S. NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 19. HIGHS IN THE UPPER
30S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 18. HIGHS IN THE LOWER 40S.
FRIDAY
SUNNY. HIGHS IN THE LOWER 40S.
WYZ288-312300-
EAST WIND RIVER MOUNTAINS/SOUTH SHOSHONE NF-
INCLUDING THE CITIES OF DUBOIS AND SOUTH PASS
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........46-52 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 25
MPH UNTIL 1500, THEN AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST 20 TO 25 MPH UNTIL 1500, THEN AROUND 15
MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 20 TO 25 MPH UNTIL 1600, THEN WEST
AROUND 15 MPH.
MIXING HEIGHT.......600-2600 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-28.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......19 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH WITH GUSTS TO AROUND
15 MPH.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....40-45.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........39-45 PERCENT.
24 HR TREND......7 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 20 TO 25 MPH.
MIXING HEIGHT.......400-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 20S. WEST WINDS
AROUND 15 MPH.
MONDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 21 TO 26. HIGHS
36 TO 41. WEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS IN THE MID 20S. HIGHS IN THE UPPER
40S.
FRIDAY
SUNNY. HIGHS IN THE MID 40S.
WYZ414-312300-
SALT AND WYOMING RANGES/WEST ZONE BRIDGER TETON NF-
INCLUDING THE CITY OF AFTON
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....31-36.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........59-65 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH UNTIL 1700, THEN AROUND 10
MPH.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....17-22.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........77-83 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH UNTIL 0100, THEN SOUTH
UNTIL 0400, THEN SOUTHEAST UNTIL 0500, THEN
SOUTH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 10 MPH.
MIXING HEIGHT.......400-800 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....38-43.
24 HR TREND......7 DEGREES WARMER.
MIN HUMIDITY........45-51 PERCENT.
24 HR TREND......14 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH. GUSTS UP TO 10 MPH
UNTIL 0900, THEN 10 MPH AFTER 1200.
RIDGE TOP WINDS.....SOUTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......200-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH TUESDAY
MOSTLY CLEAR. LOWS AROUND 18. HIGHS
33 TO 38. NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 20. HIGHS IN THE UPPER
30S. WINDS GENERALLY LESS THAN 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 19. HIGHS IN THE MID 40S.
FRIDAY
SUNNY. HIGHS IN THE MID 40S.
WYZ278-312300-
UPPER GREEN RIVER BASIN/ROCK SPRINGS BLM-
INCLUDING THE CITIES OF BIG PINEY, FARSON, AND PINEDALE
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......1 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 1200, THEN
NORTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....NORTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-2400 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....16-21.
24 HR TREND......1 DEGREE WARMER.
MAX HUMIDITY........76-82 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 10
MPH UNTIL 2400.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST 10 TO 15 MPH.
MIXING HEIGHT.......400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....40-45.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........47-53 PERCENT.
24 HR TREND......3 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1000, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....NORTHWEST AROUND 10 MPH UNTIL 1300, THEN WEST.
MIXING HEIGHT.......400-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS AROUND 19. WINDS GENERALLY
LESS THAN 10 MPH.
MONDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 15 TO 20. HIGHS
40 TO 45. NORTHWEST WINDS AROUND 10 MPH.
THURSDAY
MOSTLY CLEAR. LOWS AROUND 19. HIGHS IN THE UPPER 40S.
FRIDAY
SUNNY. HIGHS IN THE UPPER 40S.
WYZ277-312300-
LINCOLN AND UINTA COUNTIES/LOWER ELEVATIONS-
INCLUDING THE CITIES OF EVANSTON, FORT BRIDGER, AND KEMMERER
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....37-42.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........50-56 PERCENT.
24 HR TREND......4 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH AND GUSTY.
RIDGE TOP WINDS.....WEST AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 15 TO 20 MPH.
MIXING HEIGHT.......400-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....18-23.
24 HR TREND......3 DEGREES WARMER.
MAX HUMIDITY........80-86 PERCENT.
24 HR TREND......8 PERCENT DRIER.
HUMIDITY RECOVERY...EXCELLENT.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 10
MPH UNTIL 2400.
RIDGE TOP WINDS.....WEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 10 TO 15 MPH.
MIXING HEIGHT.......400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY THEN
BECOMING PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....41-46.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......10 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH.
RIDGE TOP WINDS.....NORTHWEST 5 TO 10 MPH UNTIL 1000, THEN
SOUTHWEST.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 5 TO 10 MPH.
MIXING HEIGHT.......200-1200 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 17 TO 22. HIGHS
38 TO 43. NORTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
CLEAR. LOWS IN THE LOWER 20S. HIGHS IN
THE MID 40S.
WYZ279-312300-
SWEETWATER COUNTY/ROCK SPRINGS BLM/FLAMING GORGE NRA-
INCLUDING THE CITIES OF GREEN RIVER, ROCK SPRINGS, AND WAMSUTTER
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-49.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......8 PERCENT DRIER.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH WITH GUSTS TO AROUND 25
MPH.
RIDGE TOP WINDS.....WEST 15 TO 20 MPH UNTIL 1100, THEN 20 TO 25 MPH
UNTIL 1700, THEN AROUND 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST 20 TO 25 MPH UNTIL 1700, THEN AROUND 15
MPH.
MIXING HEIGHT.......1400-3400 FT AGL UNTIL 1700, THEN 600-800 FT
AGL.
SMOKE DISPERSAL.....FAIR TO GOOD UNTIL 1700, THEN POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....23-28.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......11 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......WEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH. GUSTS UP TO 15
MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....WEST AROUND 15 MPH.
MIXING HEIGHT.......400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....46-51.
24 HR TREND......3 DEGREES WARMER.
MIN HUMIDITY........34-40 PERCENT.
24 HR TREND......7 PERCENT DRIER.
20-FOOT WINDS.......UPSLOPE/UPVALLEY 5-9 MPH UNTIL 0900, THEN
SOUTHWEST AROUND 10 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH.
MIXING HEIGHT.......400-2000 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. WINDS
GENERALLY LESS THAN 10 MPH.
MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 20S. HIGHS IN THE
UPPER 40S. WEST WINDS AROUND 10 MPH.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLEAR. LOWS 19 TO 24. HIGHS
IN THE MID 40S. WEST WINDS AROUND 10 MPH.
THURSDAY
CLEAR. LOWS IN THE LOWER 20S. HIGHS AROUND 50.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 50.
WYZ289-312300-
GRANITE/GREEN/FERRIS/RATTLESNAKE MOUNTAINS-
INCLUDING THE CITY OF JEFFREY CITY
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....42-47.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........43-49 PERCENT.
24 HR TREND......4 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 20 TO 25 MPH UNTIL 1600, THEN AROUND 15
MPH.
MIXING HEIGHT.......1800-3800 FT AGL UNTIL 1700, THEN 400-600 FT
AGL.
SMOKE DISPERSAL.....POOR TO FAIR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....25-30.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........64-70 PERCENT.
24 HR TREND......9 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......SOUTHWEST WINDS AROUND 10 MPH UNTIL 2400, THEN
DOWNSLOPE/DOWNVALLEY 4-7 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......400-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-49.
24 HR TREND......2 DEGREES WARMER.
MIN HUMIDITY........41-47 PERCENT.
24 HR TREND......2 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH. 25 MPH AFTER
1200.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1300, THEN 20 TO
25 MPH.
MIXING HEIGHT.......200-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 20S.
HIGHS 42 TO 47. NORTHWEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE MID
40S. SOUTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE LOWER 20S.
HIGHS AROUND 50.
WYZ300-312300-
CASPER MOUNTAIN-
501 AM MST SAT JAN 31 2026
TODAY
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY SUNNY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....40-45.
24 HR TREND......6 DEGREES WARMER.
MIN HUMIDITY........37-43 PERCENT.
24 HR TREND......5 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 20 TO 25 MPH UNTIL 1200, THEN NORTHWEST 25
TO 30 MPH UNTIL 1700, THEN WEST AROUND 15 MPH.
MIXING HEIGHT.......200-1600 FT AGL UNTIL 1100, THEN 2200-4200 FT
AGL UNTIL 1300, THEN 2800-4800 FT AGL UNTIL
1700, THEN 400-600 FT AGL.
SMOKE DISPERSAL.....POOR TO FAIR UNTIL 1200, THEN GOOD TO VERY GOOD
UNTIL 1600, THEN FAIR TO GOOD UNTIL 1700, THEN
POOR.
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MIN TEMPERATURE.....26-31.
24 HR TREND......UNCHANGED.
MAX HUMIDITY........61-67 PERCENT.
24 HR TREND......14 PERCENT DRIER.
HUMIDITY RECOVERY...GOOD.
20-FOOT WINDS.......DOWNSLOPE/DOWNVALLEY 4-7 MPH UNTIL 2400, THEN
SOUTHWEST AROUND 10 MPH. GUSTS UP TO 15 MPH.
RIDGE TOP WINDS.....SOUTHWEST 10 TO 15 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST AROUND 15 MPH.
MIXING HEIGHT.......200-600 FT AGL.
SMOKE DISPERSAL.....POOR.
SUNDAY
SKY/WEATHER.........PARTLY CLOUDY.
CHANCE OF THUNDER...0 PERCENT.
MAX TEMPERATURE.....44-49.
24 HR TREND......4 DEGREES WARMER.
MIN HUMIDITY........33-39 PERCENT.
24 HR TREND......5 PERCENT DRIER.
20-FOOT WINDS.......SOUTHWEST WINDS 10 TO 15 MPH WITH HIGHER GUSTS.
RIDGE TOP WINDS.....SOUTHWEST 15 TO 20 MPH.
CHC OF WETTING RAIN.ZERO PERCENT.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH UNTIL 1300, THEN 20 TO
25 MPH.
MIXING HEIGHT.......200-1800 FT AGL.
SMOKE DISPERSAL.....POOR.
FORECAST DAYS 3 THROUGH 7...
SUNDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
MONDAY THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE LOWER 20S.
HIGHS 38 TO 43. WEST WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID 20S. HIGHS IN THE
LOWER 40S. SOUTHWEST WINDS AROUND 10 MPH.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. LOWS IN THE MID 20S.
HIGHS 45 TO 50.
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