780
FPUS55 KRIW 210748
ZFPRIW
ZONE FORECAST PRODUCT FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
147 AM MDT MON SEP 21 2026
WYZ020-211000-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF CASPER
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. AREAS OF FOG. LOWS IN THE LOWER
40S.
MONDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. AREAS OF
FOG IN THE MORNING. HIGHS IN THE MID 60S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS
AROUND 50. SOUTH WINDS 10 TO 15 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
FRIDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ017-211000-
WIND RIVER BASIN-
INCLUDING THE CITIES OF RIVERTON AND SHOSHONI
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
MID 60S.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE MID 40S. EAST WINDS AROUND 10 MPH, BECOMING
SOUTH AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 70. SOUTH WINDS AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS AROUND 50. SOUTHWEST WINDS 10 TO 15 MPH.
CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 70.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 50.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ018-211000-
LANDER FOOTHILLS-
INCLUDING THE CITY OF LANDER
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
MID 60S.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE MID 40S.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 70. SOUTH WINDS AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE UPPER 40S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 70.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ028-211000-
ROCK SPRINGS AND GREEN RIVER-
INCLUDING THE CITIES OF ROCK SPRINGS AND GREEN RIVER
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
MONDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. AREAS OF
FOG IN THE MORNING. HIGHS IN THE MID 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
PARTLY CLOUDY. SHOWERS LIKELY WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. SOUTHWEST
WINDS AROUND 10 MPH IN THE AFTERNOON. CHANCE OF RAIN 60 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE LOWER 40S. SOUTHWEST WINDS AROUND
10 MPH IN THE EVENING. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE MID 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
70S.
WYZ013-211000-
JACKSON HOLE-
INCLUDING THE CITY OF JACKSON
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. AREAS OF FOG. LOWS IN THE MID 30S.
MONDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS IN THE MID
60S.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH A
CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND 40. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
SUNNY. HIGHS IN THE LOWER 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70.
FRIDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN A SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF RAIN 30 PERCENT.
WYZ003-211000-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS AROUND
10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. SOUTH WINDS AROUND
10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 50S. WEST WINDS AROUND
10 MPH. CHANCE OF RAIN 60 PERCENT.
WEDNESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS AROUND 70.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
FRIDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS AROUND 50.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS IN THE AFTERNOON. HIGHS AROUND
70. CHANCE OF RAIN 30 PERCENT.
WYZ004-211000-
NORTH BIGHORN BASIN-
INCLUDING THE CITIES OF BASIN, GREYBULL, LOVELL, POWELL,
AND SHELL
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. LOWS IN THE MID
40S.
MONDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. AREAS OF
FOG IN THE MORNING. HIGHS AROUND 70. SOUTHEAST WINDS AROUND
10 MPH IN THE AFTERNOON.
MONDAY NIGHT
CLEAR. LOWS IN THE MID 40S. SOUTHEAST WINDS
AROUND 10 MPH IN THE EVENING.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S. SOUTHEAST WINDS AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 50. CHANCE OF RAIN
40 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WEDNESDAY NIGHT
CLEAR. LOWS AROUND 50.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A
20 PERCENT CHANCE OF SHOWERS. HIGHS IN THE LOWER 70S.
WYZ006-211000-
SOUTHEAST BIGHORN BASIN-
INCLUDING THE CITIES OF TEN SLEEP AND WORLAND
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. LOWS AROUND 50.
MONDAY
AREAS OF FOG IN THE MORNING. SUNNY. HIGHS IN THE UPPER
60S.
MONDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST WINDS
AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS AROUND 50. SOUTH
WINDS AROUND 10 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WEDNESDAY NIGHT
CLEAR. LOWS AROUND 50.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ005-211000-
SOUTHWEST BIGHORN BASIN-
INCLUDING THE CITY OF THERMOPOLIS
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
MONDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS AROUND
10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS
AROUND 10 MPH IN THE EVENING.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S. SOUTHEAST WINDS
AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS AROUND 50. SOUTHWEST
WINDS AROUND 10 MPH. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WEDNESDAY NIGHT
CLEAR. LOWS AROUND 50.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 80.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 80.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ023-211000-
STAR VALLEY-
INCLUDING THE CITIES OF AFTON, ALPINE, STAR VALLEY RANCH,
AND THAYNE
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. AREAS OF FOG. LOWS AROUND 40.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS AROUND
70.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
CHANCE OF RAIN 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH A
CHANCE OF SHOWERS AFTER MIDNIGHT. LOWS AROUND 40. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 70.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
SUNNY. HIGHS IN THE MID 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE LOWER 40S. CHANCE OF RAIN 20 PERCENT.
SUNDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
CHANCE OF RAIN 20 PERCENT.
WYZ025-211000-
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF PINEDALE
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. AREAS OF FOG. LOWS IN THE MID 30S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
LOWER 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
CLOUDY WITH RAIN SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS AROUND 40. CHANCE OF
RAIN 70 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 70.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER
60S.
SATURDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS IN THE UPPER 30S. CHANCE OF RAIN 20 PERCENT.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF
RAIN 30 PERCENT.
WYZ026-211000-
UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF LA BARGE, BIG PINEY, AND FARSON
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. LOWS IN THE UPPER
30S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
MID 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
SOUTHWEST WINDS AROUND 10 MPH IN THE AFTERNOON. CHANCE OF RAIN
30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS AROUND 40.
SOUTH WINDS AROUND 10 MPH IN THE EVENING. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 70.
THURSDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 40.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 70.
WYZ010-211000-
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF BUFFALO
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLOUDY. AREAS OF FOG. LOWS AROUND 50.
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN CLEARING. AREAS OF
FOG IN THE MORNING. HIGHS IN THE MID 60S. SOUTHEAST WINDS AROUND
10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. SOUTHEAST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S. SOUTHEAST WINDS 10 TO 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. SOUTHEAST WINDS
10 TO 15 MPH WITH GUSTS UP TO 30 MPH, BECOMING SOUTH AFTER
MIDNIGHT. CHANCE OF RAIN 20 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 80.
THURSDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 80S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ011-211000-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF KAYCEE
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLOUDY. AREAS OF FOG. LOWS AROUND 50.
MONDAY
MOSTLY CLOUDY IN THE MORNING, THEN CLEARING. AREAS OF
FOG IN THE MORNING. HIGHS IN THE MID 60S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS 10 TO 15 MPH, BECOMING SOUTH AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S. SOUTH WINDS AROUND 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 50S. SOUTH WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 80S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
WYZ027-211000-
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF KEMMERER AND COKEVILLE
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS AROUND 40.
MONDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 10 MPH IN THE AFTERNOON. CHANCE OF RAIN 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY
CLOUDY AFTER MIDNIGHT. LOWS AROUND 40. SOUTHWEST WINDS AROUND
10 MPH IN THE EVENING. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 70.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 40.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70. CHANCE OF RAIN
20 PERCENT.
WYZ016-211000-
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF DUBOIS
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. NEAR STEADY
TEMPERATURE IN THE LOWER 40S.
MONDAY
SUNNY. HIGHS AROUND 60. SOUTHEAST WINDS AROUND 10 MPH
IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS AROUND 40. EAST WINDS AROUND 10 MPH, BECOMING
NORTHWEST AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
NORTHWEST WINDS AROUND 10 MPH, BECOMING SOUTH IN THE AFTERNOON.
CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER
40S. WEST WINDS 10 TO 15 MPH. CHANCE OF RAIN 60 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 70.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 70.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 70.
SATURDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS. LOWS
IN THE LOWER 40S. CHANCE OF RAIN 20 PERCENT.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH A
CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF RAIN 30 PERCENT.
WYZ001-211000-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. NEAR STEADY
TEMPERATURE IN THE MID 30S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS AROUND
60.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS AROUND 10 MPH IN
THE AFTERNOON.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS IN THE UPPER
30S. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 60.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS AROUND 60.
SATURDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF RAIN 20 PERCENT.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.
CHANCE OF RAIN 30 PERCENT.
WYZ029-211000-
FLAMING GORGE-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MONDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S.
SOUTH WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE MID 40S. SOUTHWEST WINDS 10 TO 15 MPH
WITH GUSTS UP TO 25 MPH IN THE EVENING. CHANCE OF RAIN
40 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
70S.
WYZ022-211000-
CASPER MOUNTAIN-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
MONDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 60S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS 10 TO 15 MPH.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S. SOUTH
WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH AFTER MIDNIGHT.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY
WITH HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 60S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 70.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 40S. CHANCE OF
RAIN 20 PERCENT.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. HIGHS IN THE UPPER 60S.
WYZ002-211000-
ABSAROKA MOUNTAINS-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
UPPER 30S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS
AROUND 10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. SOUTH WINDS
AROUND 10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY. LOWS AROUND 40. WEST
WINDS 10 TO 15 MPH. CHANCE OF RAIN 60 PERCENT.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A
SLIGHT CHANCE OF. HIGHS IN THE UPPER 50S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH
A SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. BREEZY WITH
HIGHS IN THE UPPER 50S. CHANCE OF RAIN 20 PERCENT.
SATURDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS IN THE UPPER 30S. CHANCE OF RAIN 20 PERCENT.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN
THE MID 50S. CHANCE OF RAIN 30 PERCENT.
WYZ007-211000-
OWL CREEK AND BRIDGER MOUNTAINS-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
UPPER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. SOUTH WINDS
AROUND 10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH WINDS
AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 60S. SOUTH WINDS AROUND 10 MPH.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE UPPER 40S.
SOUTHWEST WINDS AROUND 10 MPH. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 70.
WYZ008-211000-
BIGHORN MOUNTAINS WEST-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. PATCHY FOG. NEAR STEADY
TEMPERATURE IN THE LOWER 40S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS
AROUND 10 MPH IN THE AFTERNOON.
MONDAY NIGHT
CLEAR. LOWS IN THE MID 40S. SOUTHEAST WINDS
AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 60S. SOUTH WINDS AROUND 10 MPH, BECOMING SOUTHWEST IN THE
AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS IN THE UPPER 40S. SOUTH
WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH. CHANCE OF RAIN
50 PERCENT.
WEDNESDAY
MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING. HIGHS IN THE LOWER 60S. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
CLEAR. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
EVENING. LOWS IN THE MID 40S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 60S.
WYZ009-211000-
BIGHORN MOUNTAINS SOUTHEAST-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
PARTLY CLOUDY. NEAR STEADY TEMPERATURE IN THE
LOWER 40S. WEST WINDS AROUND 10 MPH.
MONDAY
PARTLY CLOUDY. HIGHS IN THE MID 50S. SOUTH WINDS AROUND
10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTH WINDS
AROUND 10 MPH, BECOMING WEST AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 60S. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS IN THE MID 40S.
SOUTHWEST WINDS 10 TO 15 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
CHANCE OF RAIN 40 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
EVENING. LOWS IN THE MID 40S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH A
CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS IN THE MID 60S.
CHANCE OF RAIN 30 PERCENT.
WYZ012-211000-
TETON AND GROS VENTRE MOUNTAINS-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. AREAS OF FOG. NEAR STEADY TEMPERATURE
IN THE MID 30S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
UPPER 50S.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE UPPER 30S. SOUTH WINDS AROUND 10 MPH,
BECOMING SOUTHEAST AFTER MIDNIGHT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND
10 MPH IN THE AFTERNOON. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER
30S. CHANCE OF RAIN 60 PERCENT.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
IN THE UPPER 50S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
SUNNY. HIGHS IN THE LOWER 60S.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S.
CHANCE OF RAIN 30 PERCENT.
WYZ014-211000-
WIND RIVER MOUNTAINS WEST-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. LOWS IN THE MID
30S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
MID 50S. SOUTHWEST WINDS AROUND 10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S.
SOUTH WINDS 10 TO 15 MPH. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LITTLE OR
NO SNOW ACCUMULATION. LOWS IN THE UPPER 30S. SOUTHWEST WINDS
AROUND 10 MPH. CHANCE OF PRECIPITATION 70 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 40.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH
A SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. BREEZY WITH
HIGHS IN THE UPPER 50S. CHANCE OF RAIN 20 PERCENT.
SATURDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER
50S. CHANCE OF RAIN 40 PERCENT.
WYZ015-211000-
WIND RIVER MOUNTAINS EAST-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. LOWS IN THE MID 30S.
MONDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. SOUTH WINDS
AROUND 10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S.
SOUTHWEST WINDS 10 TO 15 MPH. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LITTLE OR
NO SNOW ACCUMULATION. LOWS IN THE UPPER 30S. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 40.
FRIDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 50S.
FRIDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. BREEZY WITH HIGHS IN THE UPPER 50S.
SATURDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF RAIN 30 PERCENT.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN
THE MID 50S. CHANCE OF RAIN 40 PERCENT.
WYZ019-211000-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF JEFFREY CITY
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. PATCHY FOG. LOWS IN THE LOWER
40S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
MID 60S. SOUTHWEST WINDS AROUND 10 MPH IN THE AFTERNOON.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS
10 TO 15 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE MID 40S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 70.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY
WITH HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY
WITH HIGHS IN THE LOWER 70S.
WYZ024-211000-
SALT RIVER AND WYOMING RANGES-
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 30S.
MONDAY
MOSTLY SUNNY. HIGHS AROUND 60. SOUTHWEST WINDS AROUND
10 MPH IN THE AFTERNOON.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS AROUND 10 MPH IN THE EVENING.
TUESDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS AROUND 10 MPH IN THE AFTERNOON. CHANCE OF RAIN 40 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER
30S. SOUTHWEST WINDS AROUND 10 MPH IN THE EVENING. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
THURSDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.
CHANCE OF RAIN 30 PERCENT.
WYZ030-211000-
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF WAMSUTTER
147 AM MDT MON SEP 21 2026
REST OF TONIGHT
MOSTLY CLEAR. AREAS OF FOG. LOWS IN THE LOWER
40S.
MONDAY
AREAS OF FOG IN THE MORNING. MOSTLY SUNNY. HIGHS IN THE
MID 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. BREEZY WITH HIGHS IN THE UPPER 60S. SOUTH WINDS AROUND
10 MPH, BECOMING SOUTHWEST 15 TO 20 MPH WITH GUSTS UP TO 30 MPH
IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE LOWER 40S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
THURSDAY
PARTLY CLOUDY. HIGHS AROUND 70.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. HIGHS AROUND 70.
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