925
FPUS55 KRIW 220434
ZFPRIW
ZONE FORECAST PRODUCT FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
1032 PM MDT THU MAY 21 2026
WYZ020-221000-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF CASPER
1032 PM MDT THU MAY 21 2026
TONIGHT
CLOUDY WITH RAIN AND SNOW SHOWERS LATE THIS EVENING,
THEN PARTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS AFTER
MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE LOWER 30S.
NORTHWEST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH, BECOMING
WEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION 80 PERCENT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 60. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS AROUND 10 MPH IN
THE EVENING.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. SOUTHWEST WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 80.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS AROUND 80. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE MID 40S. CHANCE
OF RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 40 PERCENT.
WEDNESDAY 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. CHANCE OF RAIN 30 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
CHANCE OF RAIN 40 PERCENT.
WYZ017-221000-
WIND RIVER BASIN-
INCLUDING THE CITIES OF RIVERTON AND SHOSHONI
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY LATE THIS EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 60. SOUTH WINDS AROUND
10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S. SOUTHEAST WINDS AROUND 10 MPH, BECOMING
SOUTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
10 TO 15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH, BECOMING SOUTHWEST AFTER
MIDNIGHT.
SUNDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE UPPER 70S.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A
CHANCE OF SHOWERS. BREEZY WITH LOWS IN THE UPPER 40S. CHANCE OF
RAIN 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY 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 MID 40S. CHANCE OF
RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 30 PERCENT.
WYZ018-221000-
LANDER FOOTHILLS-
INCLUDING THE CITY OF LANDER
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 50S. SOUTHEAST WINDS AROUND 10 MPH IN
THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS AROUND 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70. WEST WINDS AROUND
10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 40S. SOUTHWEST WINDS AROUND
10 MPH WITH GUSTS UP TO 20 MPH.
SUNDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE UPPER 70S.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. BREEZY WITH LOWS IN THE
MID 40S. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 30 PERCENT.
WEDNESDAY 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 MID 40S. CHANCE OF
RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
CHANCE OF RAIN 30 PERCENT.
WYZ028-221000-
ROCK SPRINGS AND GREEN RIVER-
INCLUDING THE CITIES OF ROCK SPRINGS AND GREEN RIVER
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY LATE THIS EVENING, THEN CLEARING. LOWS
AROUND 30. EAST WINDS AROUND 10 MPH, BECOMING SOUTHEAST AFTER
MIDNIGHT.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS AROUND
10 MPH, BECOMING WEST WITH GUSTS UP TO 25 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 30 MPH, BECOMING SOUTHWEST AFTER
MIDNIGHT.
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. BREEZY WITH HIGHS IN THE MID 70S. CHANCE OF RAIN
30 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN
30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 40.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS AROUND 70. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 40.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70.
CHANCE OF RAIN 20 PERCENT.
WYZ013-221000-
JACKSON HOLE-
INCLUDING THE CITY OF JACKSON
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 50S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE EVENING.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 20 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
PARTLY 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.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER
MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 60S. CHANCE OF PRECIPITATION 30 PERCENT.
WYZ003-221000-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. WEST WINDS AROUND
10 MPH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 10 MPH,
BECOMING NORTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. SOUTH WINDS AROUND
10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. WEST WINDS
10 TO 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 40S. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP
TO 25 MPH.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. BREEZY WITH HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE LOWER 50S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 70S. CHANCE OF RAIN 30 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 70S. CHANCE OF
RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SHOWERS
AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 60S. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY 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 UPPER 40S. CHANCE
OF RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 30 PERCENT.
WYZ004-221000-
NORTH BIGHORN BASIN-
INCLUDING THE CITIES OF BASIN, GREYBULL, LOVELL, POWELL,
AND SHELL
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. NORTHWEST WINDS
AROUND 10 MPH LATE THIS EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS
AROUND 10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S. EAST WINDS
AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHEAST WINDS
AROUND 10 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
MID 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE MID 80S.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. BREEZY WITH LOWS AROUND
50. CHANCE OF RAIN 50 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN
THE MID 70S. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS AROUND 50.
CHANCE OF RAIN 30 PERCENT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
CHANCE OF RAIN 30 PERCENT.
WYZ006-221000-
SOUTHEAST BIGHORN BASIN-
INCLUDING THE CITIES OF TEN SLEEP AND WORLAND
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY LATE THIS EVENING, THEN CLEARING. LOWS
IN THE MID 30S. WEST WINDS AROUND 10 MPH LATE THIS EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS
AROUND 10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40. SOUTHEAST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS
AROUND 10 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 80.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE MID 80S.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF
RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS AROUND 50.
CHANCE OF RAIN 30 PERCENT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
CHANCE OF RAIN 30 PERCENT.
WYZ005-221000-
SOUTHWEST BIGHORN BASIN-
INCLUDING THE CITY OF THERMOPOLIS
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WEST WINDS AROUND
10 MPH LATE THIS EVENING.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 60. EAST WINDS AROUND 10 MPH
IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. SOUTHEAST WINDS
AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHEAST WINDS
AROUND 10 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 80.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
LOWER 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE LOWER 80S.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. BREEZY WITH LOWS AROUND
50. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 40 PERCENT.
WEDNESDAY 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 UPPER 40S. CHANCE
OF RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
CHANCE OF RAIN 30 PERCENT.
WYZ023-221000-
STAR VALLEY-
INCLUDING THE CITIES OF AFTON, ALPINE, STAR VALLEY RANCH,
AND THAYNE
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70. WEST WINDS AROUND
10 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 30S. SOUTHWEST WINDS AROUND
10 MPH WITH GUSTS UP TO 20 MPH IN THE EVENING.
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE OF RAIN 30 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
MEMORIAL DAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND
80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 20 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY
AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF RAIN 20 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID
60S. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF
RAIN SHOWERS. LOWS IN THE MID 30S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70.
CHANCE OF PRECIPITATION 30 PERCENT.
WYZ025-221000-
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF PINEDALE
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE MID 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. WEST WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE EVENING.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 70.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE LOWER 70S. CHANCE OF RAIN 30 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. BREEZY WITH HIGHS AROUND 70. CHANCE OF RAIN
30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY
CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS
IN THE MID 30S. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF
PRECIPITATION 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER
MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF SNOW SHOWERS IN THE MORNING, THEN A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
CHANCE OF PRECIPITATION 20 PERCENT.
WYZ026-221000-
UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF LA BARGE, BIG PINEY, AND FARSON
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY LATE THIS EVENING, THEN CLEARING. LOWS
IN THE UPPER 20S. SOUTH WINDS AROUND 10 MPH LATE THIS EVENING.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE UPPER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30. NORTHWEST WINDS AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70. WEST WINDS
AROUND 10 MPH, INCREASING TO 15 TO 20 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE MID 30S.
WEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH IN THE EVENING.
SUNDAY
PARTLY CLOUDY AND BREEZY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS AROUND 70.
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 IN THE MID 30S. CHANCE OF RAIN
30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 60S.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN MOSTLY CLEAR AFTER
MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH
HIGHS AROUND 70. CHANCE OF RAIN 20 PERCENT.
WYZ010-221000-
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF BUFFALO
1032 PM MDT THU MAY 21 2026
TONIGHT
CLOUDY LATE THIS EVENING, THEN BECOMING PARTLY CLOUDY.
A 30 PERCENT CHANCE OF RAIN SHOWERS. LOWS IN THE MID 30S.
NORTHWEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 60. NORTHWEST WINDS 10 TO
15 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. NORTHWEST WINDS
AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70. SOUTH WINDS AROUND
10 MPH IN THE MORNING.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHWEST
WINDS AROUND 10 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE MID 80S.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF
RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING,
THEN SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. BREEZY WITH HIGHS IN THE LOWER 70S. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE UPPER 40S. CHANCE OF RAIN 40 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
CHANCE OF RAIN 40 PERCENT.
WYZ011-221000-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF KAYCEE
1032 PM MDT THU MAY 21 2026
TONIGHT
CLOUDY WITH RAIN SHOWERS LIKELY LATE THIS EVENING,
THEN PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
LOWS IN THE MID 30S. NORTHWEST WINDS AROUND 10 MPH, BECOMING WEST
AFTER MIDNIGHT. CHANCE OF RAIN 60 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 60S. NORTHWEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S. NORTHWEST WINDS AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTHWEST
WINDS AROUND 10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE MID 80S.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF
RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE LOWER
70S. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS IN THE EVENING. A CHANCE
OF SHOWERS. LOWS IN THE MID 40S. CHANCE OF RAIN 30 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.
CHANCE OF RAIN 40 PERCENT.
WYZ027-221000-
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF KEMMERER AND COKEVILLE
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. NORTH WINDS
AROUND 10 MPH LATE THIS EVENING.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING WEST 15 TO 20 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE EVENING.
SUNDAY
PARTLY CLOUDY AND BREEZY. HIGHS IN THE MID 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 70.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
60S.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF
RAIN SHOWERS. LOWS IN THE MID 30S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH
HIGHS AROUND 70. CHANCE OF RAIN 20 PERCENT.
WYZ016-221000-
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF DUBOIS
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS AROUND 30.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. WEST WINDS AROUND 10 MPH IN THE
AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS
AROUND 10 MPH.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 60S. WEST
WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.
SATURDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS AROUND 40. WEST
WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH, DIMINISHING TO AROUND
10 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. BREEZY
WITH HIGHS AROUND 70. CHANCE OF RAIN 30 PERCENT.
SUNDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY
WITH A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 40 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S.
CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A
CHANCE OF SHOWERS. LOWS IN THE LOWER 40S. CHANCE OF RAIN
40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF
RAIN 50 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS AROUND 40. CHANCE OF
RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. A SLIGHT
CHANCE OF SNOW SHOWERS IN THE MORNING, THEN A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF
PRECIPITATION 30 PERCENT.
WYZ001-221000-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S.
FRIDAY
PARTLY CLOUDY. HIGHS AROUND 50. WEST WINDS AROUND
10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 30S. SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO
30 MPH IN THE EVENING.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 60S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER 60S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY 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
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. 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 UPPER 50S. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
LOWS IN THE MID 30S. CHANCE OF PRECIPITATION 30 PERCENT.
THURSDAY
MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS, SNOW SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
AROUND 60. CHANCE OF PRECIPITATION 30 PERCENT.
WYZ029-221000-
FLAMING GORGE-
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY. LOWS AROUND 30. NORTHEAST WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH, BECOMING SOUTHEAST AFTER
MIDNIGHT.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 10 MPH IN THE
AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40. SOUTH WINDS AROUND 10 MPH.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.
SOUTHWEST WINDS AROUND 10 MPH, BECOMING WEST 15 TO 20 MPH IN THE
AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE MID 40S.
WEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH IN THE EVENING.
SUNDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 30 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
AROUND 70.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 40S.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER
60S. CHANCE OF RAIN 20 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH
HIGHS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.
WYZ022-221000-
CASPER MOUNTAIN-
1032 PM MDT THU MAY 21 2026
TONIGHT
CLOUDY. SNOW SHOWERS WITH A SLIGHT CHANCE OF RAIN
SHOWERS LATE THIS EVENING, THEN SNOW SHOWERS LIKELY AFTER
MIDNIGHT. SNOW ACCUMULATION UP TO 2 INCHES. NEAR STEADY
TEMPERATURE IN THE UPPER 20S. NORTHWEST WINDS AROUND 10 MPH.
CHANCE OF PRECIPITATION 80 PERCENT.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 40S. WEST WINDS 10 TO 15 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS AROUND
10 MPH, BECOMING SOUTH AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 60. SOUTHWEST WINDS 10 TO
15 MPH, BECOMING WEST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. SOUTH WINDS 10 TO
15 MPH.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN
40 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. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF
RAIN 40 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER
MIDNIGHT. LOWS IN THE MID 40S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
CHANCE OF RAIN 40 PERCENT.
WYZ002-221000-
ABSAROKA MOUNTAINS-
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. NORTHWEST WINDS
AROUND 10 MPH.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 40S. WEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. WEST WINDS
10 TO 15 MPH.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 50S. WEST
WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.
SATURDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE MID 30S.
WEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.
SUNDAY
MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN
THE UPPER 50S. CHANCE OF RAIN 30 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
BREEZY WITH HIGHS IN THE LOWER 60S. CHANCE OF RAIN 30 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH
RAIN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 50S. CHANCE OF RAIN
60 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY, A SLIGHT
CHANCE OF THUNDERSTORMS AND SNOW SHOWERS IN THE EVENING, THEN A
CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW
ACCUMULATION. LOWS IN THE UPPER 30S. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS IN
THE MORNING, THEN RAIN SHOWERS, SNOW SHOWERS LIKELY WITH A CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW
ACCUMULATION. HIGHS IN THE LOWER 50S. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
LOWS IN THE MID 30S. CHANCE OF PRECIPITATION 40 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE MID 50S. CHANCE OF PRECIPITATION 30 PERCENT.
WYZ007-221000-
OWL CREEK AND BRIDGER MOUNTAINS-
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY LATE THIS EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S. NORTHWEST WINDS AROUND 10 MPH.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. WEST WINDS AROUND 10 MPH, BECOMING
NORTHEAST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40. SOUTHEAST WINDS
AROUND 10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHWEST
WINDS 10 TO 15 MPH.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
MID 70S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE MID 70S.
TUESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. BREEZY WITH LOWS IN THE
UPPER 40S. CHANCE OF RAIN 40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE MID 60S.
CHANCE OF RAIN 40 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT
CHANCE OF SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE UPPER
40S. CHANCE OF RAIN 40 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF
RAIN 30 PERCENT.
WYZ008-221000-
BIGHORN MOUNTAINS WEST-
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY WITH A 30 PERCENT CHANCE OF SNOW
SHOWERS. LOWS IN THE MID 20S. NORTH WINDS AROUND 10 MPH.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. WEST WINDS
10 TO 15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTH
WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS AROUND 70.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS AROUND 50.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
AROUND 70.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE MID 40S. CHANCE
OF RAIN 60 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID
40S. CHANCE OF RAIN 30 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF RAIN
SHOWERS, SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF PRECIPITATION
40 PERCENT.
WYZ009-221000-
BIGHORN MOUNTAINS SOUTHEAST-
1032 PM MDT THU MAY 21 2026
TONIGHT
CLOUDY WITH SNOW SHOWERS LIKELY WITH A CHANCE OF RAIN
SHOWERS LATE THIS EVENING, THEN PARTLY CLOUDY WITH A CHANCE OF
SNOW SHOWERS AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. LOWS
IN THE UPPER 20S. NORTHWEST WINDS AROUND 10 MPH WITH GUSTS UP TO
20 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 40S. NORTHWEST WINDS 10 TO 15 MPH WITH
GUSTS UP TO 25 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS
AROUND 10 MPH.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 50S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 30 MPH.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
LOWER 70S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS
AROUND 70. CHANCE OF RAIN 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE MID 40S. CHANCE
OF RAIN 60 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF RAIN
60 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 40S. CHANCE OF RAIN
30 PERCENT.
THURSDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A CHANCE
OF RAIN SHOWERS. A CHANCE OF SNOW SHOWERS IN THE MORNING, THEN A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 60S. CHANCE OF PRECIPITATION 40 PERCENT.
WYZ012-221000-
TETON AND GROS VENTRE MOUNTAINS-
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 40S. WEST WINDS
AROUND 10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. SOUTH WINDS 10 TO
15 MPH, BECOMING WEST IN THE AFTERNOON. GUSTS UP TO 30 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHWEST
WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH, BECOMING SOUTH WITH
GUSTS UP TO 20 MPH AFTER MIDNIGHT.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF
RAIN 30 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY 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.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60. CHANCE
OF RAIN 40 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT
CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID
30S. CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. HIGHS IN THE MID
50S. CHANCE OF PRECIPITATION 40 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS IN THE MID 30S.
CHANCE OF PRECIPITATION 30 PERCENT.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 50S. CHANCE OF PRECIPITATION 30 PERCENT.
WYZ014-221000-
WIND RIVER MOUNTAINS WEST-
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLD WITH LOWS 16 TO 24.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE MID 40S. WEST WINDS AROUND
10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. NORTHWEST
WINDS AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 50S. WEST
WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. BREEZY WITH LOWS IN THE MID 30S. WEST WINDS 15 TO
20 MPH WITH GUSTS UP TO 30 MPH, DIMINISHING TO AROUND 10 MPH WITH
GUSTS UP TO 20 MPH AFTER MIDNIGHT.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER
50S. CHANCE OF RAIN 40 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY 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.
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. BREEZY WITH HIGHS IN THE UPPER 50S. CHANCE OF RAIN
30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF SNOW SHOWERS.
LOWS IN THE MID 30S. CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. HIGHS IN THE MID
50S. CHANCE OF PRECIPITATION 40 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS IN THE MID 30S.
CHANCE OF PRECIPITATION 30 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS IN THE MORNING, THEN PARTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS, SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE MID 50S. CHANCE OF PRECIPITATION
30 PERCENT.
WYZ015-221000-
WIND RIVER MOUNTAINS EAST-
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLD WITH LOWS AROUND 20. WEST WINDS
AROUND 10 MPH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 40S. WEST WINDS AROUND 10 MPH.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. WEST WINDS
10 TO 15 MPH.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 50S. WEST
WINDS 15 TO 20 MPH WITH GUSTS UP TO 35 MPH.
SATURDAY NIGHT
MOSTLY CLEAR AND BREEZY. LOWS IN THE MID 30S.
WEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 35 MPH.
SUNDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER
50S. CHANCE OF RAIN 30 PERCENT.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE UPPER 30S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY
WITH A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF RAIN
40 PERCENT.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, SNOW SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY
WITH HIGHS IN THE UPPER 50S. CHANCE OF PRECIPITATION 30 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW
SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 50S. CHANCE OF PRECIPITATION 40 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN MOSTLY CLEAR WITH A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF
PRECIPITATION 30 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN AND SNOW SHOWERS.
A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 50S. CHANCE OF PRECIPITATION 30 PERCENT.
WYZ019-221000-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF JEFFREY CITY
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLOUDY LATE THIS EVENING, THEN BECOMING PARTLY
CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS LATE THIS EVENING. LOWS
IN THE UPPER 20S. NORTHWEST WINDS AROUND 10 MPH LATE THIS
EVENING. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE MID 50S. WEST WINDS AROUND
10 MPH.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. WEST WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. SOUTHWEST
WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN THE EVENING.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. BREEZY WITH HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. BREEZY WITH HIGHS IN THE LOWER 70S. 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. BREEZY WITH LOWS IN THE LOWER 40S. CHANCE OF RAIN
30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF RAIN
30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE LOWER
40S. CHANCE OF RAIN 30 PERCENT.
THURSDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH
A CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF RAIN 30 PERCENT.
WYZ024-221000-
SALT RIVER AND WYOMING RANGES-
1032 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. NORTH WINDS AROUND
10 MPH LATE THIS EVENING.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. HIGHS IN THE LOWER 50S. SOUTH WINDS AROUND 10 MPH,
BECOMING WEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S. WEST WINDS AROUND 10 MPH IN THE EVENING.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 60S. WEST
WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. BREEZY WITH LOWS IN THE UPPER 30S. WEST WINDS
15 TO 20 MPH WITH GUSTS UP TO 35 MPH, BECOMING SOUTHWEST AROUND
10 MPH WITH GUSTS UP TO 20 MPH AFTER MIDNIGHT.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE MID 60S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE LOWER
60S. CHANCE OF RAIN 20 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER
30S. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. HIGHS IN THE
UPPER 50S. CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A SLIGHT CHANCE OF
RAIN AND SNOW SHOWERS. LOWS IN THE MID 30S. CHANCE OF
PRECIPITATION 20 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SNOW SHOWERS. 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 LOWER 60S. CHANCE OF
PRECIPITATION 30 PERCENT.
WYZ030-221000-
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF WAMSUTTER
1032 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S. NORTH WINDS
10 TO 15 MPH LATE THIS EVENING.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE MID 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS
10 TO 15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS AROUND 40. WEST WINDS 15 TO 20 MPH WITH GUSTS UP
TO 30 MPH IN THE EVENING.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 40S.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS AROUND 70.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY AFTER
MIDNIGHT. BREEZY WITH LOWS AROUND 40. CHANCE OF RAIN 20 PERCENT.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
AROUND 70.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 40.
THURSDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70. CHANCE OF RAIN
20 PERCENT.
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