589
FPUS55 KRIW 200619
ZFPRIW
ZONE FORECAST PRODUCT FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
1217 AM MDT WED MAY 20 2026
WYZ020-201000-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF CASPER
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS IN THE MID 20S. SOUTH WINDS AROUND
10 MPH WITH GUSTS UP TO 20 MPH.
WEDNESDAY
SUNNY IN THE MORNING, THEN BECOMING PARTLY CLOUDY.
HIGHS AROUND 60. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING NORTH AFTER MIDNIGHT. GUSTS UP TO
25 MPH.
THURSDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS LIKELY WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 50S. NORTHEAST
WINDS 10 TO 15 MPH. CHANCE OF RAIN 60 PERCENT.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN SHOWERS WITH A SLIGHT CHANCE OF SNOW SHOWERS.
LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE MID 30S. NORTH WINDS
10 TO 15 MPH, BECOMING NORTHWEST AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 80 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW SHOWERS
IN THE MORNING. HIGHS IN THE UPPER 50S. CHANCE OF PRECIPITATION
20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MEMORIAL DAY
SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 40S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
AROUND 80.
WYZ017-201000-
WIND RIVER BASIN-
INCLUDING THE CITIES OF RIVERTON AND SHOSHONI
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS AROUND 30. SOUTH WINDS AROUND
10 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 60. SOUTHWEST WINDS
10 TO 15 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST
WINDS 10 TO 15 MPH, BECOMING EAST AFTER MIDNIGHT.
THURSDAY
RAIN SHOWERS. A CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. BREEZY WITH HIGHS AROUND 50.
NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH, BECOMING
NORTH 15 TO 20 MPH WITH GUSTS UP TO 35 MPH IN THE AFTERNOON.
CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
CLOUDY WITH RAIN SHOWERS LIKELY IN THE EVENING,
THEN PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
LOWS IN THE MID 30S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO
30 MPH IN THE EVENING. CHANCE OF RAIN 60 PERCENT.
FRIDAY
MOSTLY SUNNY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE LOWER 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE UPPER 70S.
WYZ018-201000-
LANDER FOOTHILLS-
INCLUDING THE CITY OF LANDER
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 20S. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 60. SOUTH WINDS AROUND
10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A SLIGHT CHANCE OF. LOWS IN THE UPPER 30S. WEST
WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH.
THURSDAY
RAIN SHOWERS. A CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN A CHANCE OF THUNDERSTORMS WITH A SLIGHT CHANCE OF
SNOW SHOWERS IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
HIGHS IN THE UPPER 40S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO
25 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY NIGHT
CLOUDY WITH RAIN SHOWERS LIKELY IN THE EVENING,
THEN PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS WITH A SLIGHT
CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW
ACCUMULATION. LOWS IN THE LOWER 30S. NORTH WINDS AROUND 10 MPH
WITH GUSTS UP TO 25 MPH IN THE EVENING. CHANCE OF PRECIPITATION
60 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS AROUND 80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER 70S.
WYZ028-201000-
ROCK SPRINGS AND GREEN RIVER-
INCLUDING THE CITIES OF ROCK SPRINGS AND GREEN RIVER
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 20S.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 60. WEST WINDS 10 TO
15 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
LOWS IN THE MID 30S. WEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 40 PERCENT.
THURSDAY
RAIN SHOWERS. A CHANCE OF SNOW SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
HIGHS IN THE LOWER 50S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO
25 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS AROUND 30.
NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE MID 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
UPPER 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE MID 70S.
WYZ013-201000-
JACKSON HOLE-
INCLUDING THE CITY OF JACKSON
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S.
WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S. SOUTH WINDS
AROUND 10 MPH, BECOMING WEST WITH GUSTS UP TO 20 MPH IN THE
AFTERNOON. CHANCE OF RAIN 20 PERCENT.
WEDNESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS. RAIN SHOWERS
LIKELY IN THE EVENING, THEN RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
SNOW ACCUMULATION UP TO 1 INCH. LOWS IN THE MID 30S. WEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE EVENING. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY
RAIN AND SNOW SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE LOWER
50S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE
AFTERNOON. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 30. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH
IN THE EVENING.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. 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. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
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 30 PERCENT.
WYZ003-201000-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 50S. WEST WINDS AROUND 10 MPH, BECOMING NORTH WITH GUSTS UP
TO 20 MPH IN THE AFTERNOON. CHANCE OF RAIN 60 PERCENT.
WEDNESDAY NIGHT
CLOUDY. RAIN SHOWERS LIKELY WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW
SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. LOWS IN
THE MID 30S. NORTH WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH AFTER
MIDNIGHT. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
SNOW SHOWERS. RAIN SHOWERS IN THE MORNING, THEN RAIN
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. WINDY WITH HIGHS IN THE MID 40S.
NORTH WINDS 20 TO 30 MPH WITH GUSTS UP TO 45 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE LOWER 30S. NORTHWEST WINDS 15 TO 20 MPH
WITH GUSTS UP TO 30 MPH, BECOMING WEST AROUND 10 MPH AFTER
MIDNIGHT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 60.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 50S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH
HIGHS AROUND 80.
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 MID 70S. CHANCE OF
RAIN 30 PERCENT.
WYZ004-201000-
NORTH BIGHORN BASIN-
INCLUDING THE CITIES OF BASIN, GREYBULL, LOVELL, POWELL,
AND SHELL
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S.
WEST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE
AFTERNOON. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SHOWERS
LIKELY AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 40. NORTHWEST
WINDS 15 TO 20 MPH. CHANCE OF RAIN 60 PERCENT.
THURSDAY
SHOWERS. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. WINDY WITH HIGHS IN THE LOWER
50S. NORTHWEST WINDS 20 TO 30 MPH WITH GUSTS UP TO 45 MPH. CHANCE
OF PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN
THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. BREEZY WITH LOWS
IN THE MID 30S. NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH,
BECOMING WEST AROUND 10 MPH AFTER MIDNIGHT. CHANCE OF RAIN
30 PERCENT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
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 SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE LOWER
80S. CHANCE OF RAIN 20 PERCENT.
WYZ006-201000-
SOUTHEAST BIGHORN BASIN-
INCLUDING THE CITIES OF TEN SLEEP AND WORLAND
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTHEAST
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 60S. WEST WINDS AROUND 10 MPH IN THE
AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. SHOWERS LIKELY AFTER MIDNIGHT.
LOWS AROUND 40. NORTHWEST WINDS 10 TO 15 MPH. CHANCE OF RAIN
60 PERCENT.
THURSDAY
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. BREEZY WITH HIGHS AROUND 50. NORTHWEST WINDS 15 TO
20 MPH WITH GUSTS UP TO 35 MPH. CHANCE OF RAIN 80 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY IN THE
EVENING, THEN PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 30S. NORTHWEST WINDS 10 TO 15 MPH WITH
GUSTS UP TO 30 MPH, BECOMING SOUTH AFTER MIDNIGHT. CHANCE OF RAIN
60 PERCENT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
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
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE LOWER 80S.
WYZ005-201000-
SOUTHWEST BIGHORN BASIN-
INCLUDING THE CITY OF THERMOPOLIS
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 30S. SOUTHWEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH.
WEDNESDAY
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 MID 60S. SOUTH WINDS AROUND 10 MPH,
BECOMING SOUTHWEST WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS IN THE
EVENING, THEN SHOWERS LIKELY AFTER MIDNIGHT. LOWS AROUND 40.
NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH. CHANCE OF RAIN
60 PERCENT.
THURSDAY
RAIN SHOWERS. A SLIGHT CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. BREEZY WITH HIGHS AROUND 50.
NORTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 40 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. BREEZY WITH LOWS
IN THE MID 30S. NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS UP TO
35 MPH, BECOMING WEST AROUND 10 MPH AFTER MIDNIGHT. CHANCE OF
RAIN 30 PERCENT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 40S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
LOWER 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS AROUND 80.
WYZ023-201000-
STAR VALLEY-
INCLUDING THE CITIES OF AFTON, ALPINE, STAR VALLEY RANCH,
AND THAYNE
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS AROUND 30.
WEDNESDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 60. WEST WINDS AROUND
10 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF
THUNDERSTORMS. A CHANCE OF RAIN SHOWERS IN THE EVENING, THEN RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. WEST WINDS AROUND
10 MPH IN THE EVENING. CHANCE OF RAIN 80 PERCENT.
THURSDAY
RAIN SHOWERS. SNOW SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE LOWER
50S. NORTHWEST WINDS AROUND 10 MPH IN THE AFTERNOON. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 30. NORTH WINDS AROUND 10 MPH IN THE EVENING.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
SUNDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
70S.
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. HIGHS AROUND 80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF
RAIN 20 PERCENT.
WYZ025-201000-
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF PINEDALE
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 20S.
WEDNESDAY
MOSTLY SUNNY 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. WEST WINDS
10 TO 15 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION
30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF
THUNDERSTORMS. A CHANCE OF RAIN SHOWERS IN THE EVENING, THEN RAIN
AND SNOW SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION.
LOWS IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH IN THE EVENING.
CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
SNOW AND RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS AROUND 50.
NORTHWEST WINDS AROUND 10 MPH IN THE AFTERNOON. CHANCE OF
PRECIPITATION 90 PERCENT.
THURSDAY 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 20S.
NORTH WINDS AROUND 10 MPH IN THE EVENING. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING 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 BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
TUESDAY
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.
WYZ026-201000-
UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF LA BARGE, BIG PINEY, AND FARSON
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 50S. WEST WINDS 10 TO 15 MPH IN THE AFTERNOON. CHANCE OF
RAIN 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN
THE EVENING, THEN MOSTLY CLOUDY WITH RAIN AND SNOW SHOWERS LIKELY
AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE LOWER
30S. WEST WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
THURSDAY
RAIN SHOWERS. SNOW SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS AROUND 50.
SOUTHWEST WINDS AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY 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 20S. NORTHEAST WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE EVENING. CHANCE OF
RAIN 50 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE LOWER 70S.
WYZ010-201000-
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF BUFFALO
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE MID 30S. SOUTH WINDS 10 TO
15 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH IN THE MORNING.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTH
WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
THURSDAY
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. BREEZY WITH HIGHS IN THE LOWER 50S. NORTH WINDS 15 TO
20 MPH. GUSTS UP TO 35 MPH IN THE AFTERNOON. CHANCE OF RAIN
80 PERCENT.
THURSDAY NIGHT
CLOUDY WITH RAIN SHOWERS LIKELY IN THE EVENING,
THEN PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT.
BREEZY WITH LOWS IN THE UPPER 30S. NORTHWEST WINDS 15 TO 20 MPH
WITH GUSTS UP TO 35 MPH, DIMINISHING TO AROUND 10 MPH WITH GUSTS
UP TO 20 MPH AFTER MIDNIGHT. CHANCE OF RAIN 60 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 80S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE LOWER 80S.
WYZ011-201000-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF KAYCEE
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 30S. SOUTH WINDS
10 TO 15 MPH.
WEDNESDAY
SUNNY IN THE MORNING, THEN BECOMING PARTLY CLOUDY.
HIGHS IN THE MID 60S. SOUTHWEST WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
THURSDAY
MOSTLY CLOUDY WITH SHOWERS LIKELY. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE MID 50S.
NORTH WINDS 15 TO 20 MPH. CHANCE OF RAIN 60 PERCENT.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY. BREEZY WITH LOWS
IN THE MID 30S. NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH,
BECOMING NORTHWEST 10 TO 15 MPH AFTER MIDNIGHT. CHANCE OF RAIN
60 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 80S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
TUESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE LOWER 80S.
WYZ027-201000-
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF KEMMERER AND COKEVILLE
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. WEST WINDS 10 TO 15 MPH IN THE
AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH RAIN SHOWERS LIKELY WITH A CHANCE OF SNOW SHOWERS
AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE MID
30S. WEST WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
THURSDAY
RAIN SHOWERS. A CHANCE OF SNOW SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
HIGHS IN THE LOWER 50S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO
25 MPH. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER
20S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF RAIN 40 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS AROUND 60.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS AROUND 70.
WYZ016-201000-
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF DUBOIS
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 20S.
WEDNESDAY
MOSTLY SUNNY 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. WEST WINDS
10 TO 15 MPH. CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS
WITH RAIN SHOWERS LIKELY AFTER MIDNIGHT. SNOW ACCUMULATION UP TO
1 INCH. LOWS IN THE MID 30S. WEST WINDS 10 TO 15 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
RAIN AND SNOW SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE MID
40S. EAST WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION NEAR
100 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW
SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS
AROUND 30. EAST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN
THE EVENING. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE LOWER 70S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE
LOWER 70S.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE LOWER 70S. CHANCE OF RAIN 30 PERCENT.
WYZ001-201000-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S.
WEDNESDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS, SNOW SHOWERS
LIKELY WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. SNOW
ACCUMULATION UP TO 1 INCH. HIGHS IN THE UPPER 40S. SOUTHWEST
WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF
PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
RAIN SHOWERS, SNOW SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW AND RAIN
SHOWERS AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 6 INCHES. LOWS IN
THE UPPER 20S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN
THE EVENING. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
CLOUDY. SNOW SHOWERS IN THE MORNING, THEN SNOW
SHOWERS LIKELY, A SLIGHT CHANCE OF THUNDERSTORMS AND RAIN SHOWERS
IN THE AFTERNOON. NEW LIGHT SNOW ACCUMULATION. HIGHS IN THE LOWER
40S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 20S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO
25 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY. 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. BREEZY WITH HIGHS IN THE MID 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF
RAIN 30 PERCENT.
WYZ029-201000-
FLAMING GORGE-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE UPPER 20S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. WEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT.
LOWS IN THE UPPER 30S. WEST WINDS AROUND 10 MPH IN THE EVENING.
CHANCE OF PRECIPITATION 30 PERCENT.
THURSDAY
RAIN AND SNOW SHOWERS LIKELY IN THE MORNING, THEN
RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE LOWER 50S. WEST
WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY 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 AND SNOW SHOWERS AFTER
MIDNIGHT. LOWS IN THE MID 30S. NORTH WINDS 10 TO 15 MPH, BECOMING
NORTHEAST AFTER MIDNIGHT. CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS
IN THE MID 70S.
WYZ022-201000-
CASPER MOUNTAIN-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. NEAR STEADY TEMPERATURE AROUND 30.
SOUTH WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING SOUTH AFTER MIDNIGHT.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A CHANCE
OF SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE UPPER
40S. SOUTH WINDS AROUND 10 MPH, BECOMING NORTH IN THE AFTERNOON.
CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. RAIN AND SNOW SHOWERS. LITTLE OR NO SNOW ACCUMULATION.
LOWS IN THE LOWER 30S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO
20 MPH, BECOMING NORTHWEST AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 80 PERCENT.
FRIDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW AND RAIN SHOWERS IN
THE MORNING, THEN PARTLY CLOUDY IN THE AFTERNOON. HIGHS IN THE
UPPER 40S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY. 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 SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN
30 PERCENT.
WYZ002-201000-
ABSAROKA MOUNTAINS-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. WEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN THE
MORNING, THEN SNOW SHOWERS LIKELY, A CHANCE OF THUNDERSTORMS AND
RAIN SHOWERS LIKELY IN THE AFTERNOON. SNOW ACCUMULATION UP TO
1 INCH. HIGHS IN THE UPPER 40S. WEST WINDS 10 TO 15 MPH WITH
GUSTS UP TO 25 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
SNOW SHOWERS. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 7 INCHES. LOWS IN THE
UPPER 20S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY
A SLIGHT CHANCE OF THUNDERSTORMS. SNOW SHOWERS. SNOW
MAY BE HEAVY AT TIMES IN THE MORNING. NEW MODERATE SNOW
ACCUMULATION. HIGHS IN THE MID 30S. NORTHEAST WINDS 10 TO 15 MPH
WITH GUSTS UP TO 30 MPH. CHANCE OF SNOW 90 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN
THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS IN THE LOWER
20S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH, BECOMING
WEST WITH GUSTS UP TO 20 MPH AFTER MIDNIGHT. CHANCE OF SNOW
30 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 40S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 20S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE UPPER 50S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH
HIGHS AROUND 60.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS AROUND 40.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS, THUNDERSTORMS AND SNOW SHOWERS IN THE
AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 50S. CHANCE OF
PRECIPITATION 30 PERCENT.
WYZ007-201000-
OWL CREEK AND BRIDGER MOUNTAINS-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 30S. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY
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 UPPER 50S. SOUTHWEST WINDS 10 TO
15 MPH. CHANCE OF RAIN 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN
THE EVENING, THEN MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY AFTER
MIDNIGHT. LOWS IN THE MID 30S. NORTHWEST WINDS 10 TO 15 MPH,
BECOMING NORTHEAST AFTER MIDNIGHT. CHANCE OF RAIN 70 PERCENT.
THURSDAY
SNOW AND RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
BREEZY WITH HIGHS IN THE LOWER 40S. NORTH WINDS 15 TO 25 MPH WITH
GUSTS UP TO 40 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH RAIN AND SNOW SHOWERS LIKELY
IN THE EVENING, THEN PARTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW
SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. BREEZY
WITH LOWS IN THE LOWER 30S. NORTH WINDS 15 TO 20 MPH WITH GUSTS
UP TO 35 MPH, BECOMING WEST AROUND 10 MPH AFTER MIDNIGHT. CHANCE
OF PRECIPITATION 70 PERCENT.
FRIDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 50.
MEMORIAL DAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE LOWER 50S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE LOWER 70S.
WYZ008-201000-
BIGHORN MOUNTAINS WEST-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. NEAR STEADY TEMPERATURE IN THE
LOWER 30S. SOUTHEAST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH.
WEDNESDAY
MOSTLY SUNNY 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 LOWER 50S. SOUTHWEST
WINDS AROUND 10 MPH. CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING,
THEN SNOW SHOWERS WITH RAIN SHOWERS LIKELY AFTER MIDNIGHT. SNOW
ACCUMULATION UP TO 1 INCH. LOWS IN THE MID 30S. WEST WINDS AROUND
10 MPH WITH GUSTS UP TO 20 MPH, BECOMING SOUTHEAST AFTER
MIDNIGHT. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY
SNOW SHOWERS. RAIN SHOWERS IN THE MORNING, THEN RAIN
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
LIGHT SNOW ACCUMULATION. HIGHS IN THE LOWER 40S. SOUTH WINDS
AROUND 10 MPH, BECOMING NORTHWEST IN THE AFTERNOON. GUSTS UP TO
25 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH SNOW SHOWERS WITH POSSIBLE
RAIN SHOWERS AND THUNDERSTORMS LIKELY IN THE EVENING, THEN PARTLY
CLOUDY WITH A CHANCE OF SNOW AND RAIN SHOWERS AFTER MIDNIGHT. NEW
LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE LOWER 30S. NORTHWEST
WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH IN THE EVENING.
CHANCE OF PRECIPITATION 80 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF SNOW SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 40S.
CHANCE OF SNOW 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
MEMORIAL DAY
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE UPPER 40S.
TUESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER
60S. CHANCE OF RAIN 20 PERCENT.
WYZ009-201000-
BIGHORN MOUNTAINS SOUTHEAST-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. NEAR STEADY TEMPERATURE IN THE LOWER
30S. WEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH
A CHANCE OF SNOW SHOWERS, A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 50S. WEST
WINDS AROUND 10 MPH. CHANCE OF PRECIPITATION 30 PERCENT.
WEDNESDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN THE
EVENING, THEN SNOW SHOWERS LIKELY AFTER MIDNIGHT. LITTLE OR NO
SNOW ACCUMULATION. LOWS IN THE MID 30S. WEST WINDS AROUND 10 MPH,
BECOMING NORTHEAST AFTER MIDNIGHT. CHANCE OF SNOW 60 PERCENT.
THURSDAY
SNOW SHOWERS. RAIN SHOWERS LIKELY IN THE MORNING,
THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. LIGHT SNOW ACCUMULATION. HIGHS IN THE LOWER 40S.
NORTHEAST WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
CLOUDY IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. RAIN SHOWERS. SNOW SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS LIKELY AFTER
MIDNIGHT. NEW LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE LOWER
30S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH, BECOMING
WEST AFTER MIDNIGHT. CHANCE OF PRECIPITATION 80 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, SNOW SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN
THE UPPER 40S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER
50S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE MID 60S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S.
MEMORIAL DAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 70S.
MONDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE UPPER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. BREEZY
WITH HIGHS IN THE UPPER 60S. CHANCE OF RAIN 30 PERCENT.
WYZ012-201000-
TETON AND GROS VENTRE MOUNTAINS-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF SNOW SHOWERS, RAIN
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 40S. SOUTHWEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 30 PERCENT.
WEDNESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS. SNOW SHOWERS
WITH RAIN SHOWERS LIKELY. SNOW ACCUMULATION UP TO 3 INCHES. LOWS
AROUND 30. WEST WINDS 10 TO 15 MPH IN THE EVENING. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY
SNOW AND RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. NEW LIGHT SNOW ACCUMULATION. HIGHS IN THE LOWER
40S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 20S. NORTHEAST WINDS AROUND 10 MPH. GUSTS UP TO
25 MPH IN THE EVENING.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 40S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S.
SATURDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER 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. BREEZY WITH HIGHS IN THE MID 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS, THUNDERSTORMS AND SNOW SHOWERS IN THE
AFTERNOON. HIGHS AROUND 60. CHANCE OF PRECIPITATION 30 PERCENT.
WYZ014-201000-
WIND RIVER MOUNTAINS WEST-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 20S.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH
SNOW SHOWERS LIKELY WITH POSSIBLE RAIN SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE
MID 40S. WEST WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION
60 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. SNOW SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 2 INCHES. LOWS IN THE
UPPER 20S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
CHANCE OF SNOW 80 PERCENT.
THURSDAY
SNOW SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE
MORNING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. NEW LIGHT SNOW ACCUMULATION. HIGHS IN THE UPPER 30S.
SOUTHWEST WINDS AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
GUSTS UP TO 25 MPH. CHANCE OF PRECIPITATION 90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS
WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY
CLOUDY AFTER MIDNIGHT. NEW LITTLE OR NO SNOW ACCUMULATION. LOWS
IN THE LOWER 20S. NORTHEAST WINDS AROUND 10 MPH. GUSTS UP TO
30 MPH IN THE EVENING. CHANCE OF SNOW 50 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
40S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 20S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S.
SUNDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER 50S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S.
MEMORIAL DAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE LOWER 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS, THUNDERSTORMS AND SNOW SHOWERS IN THE
AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 50S. CHANCE OF
PRECIPITATION 30 PERCENT.
WYZ015-201000-
WIND RIVER MOUNTAINS EAST-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 20S. WEST WINDS
AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH
SNOW SHOWERS LIKELY WITH POSSIBLE RAIN SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE
MID 40S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE
OF PRECIPITATION 60 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY. SNOW SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 2 INCHES. LOWS IN THE
UPPER 20S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH.
CHANCE OF SNOW 80 PERCENT.
THURSDAY
SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN
THE MORNING, THEN SNOW SHOWERS, A CHANCE OF THUNDERSTORMS AND
RAIN SHOWERS IN THE AFTERNOON. SNOW MAY BE HEAVY AT TIMES IN THE
AFTERNOON. MODERATE SNOW ACCUMULATION. HIGHS IN THE MID 30S.
SOUTH WINDS 10 TO 15 MPH, BECOMING NORTHEAST IN THE AFTERNOON.
GUSTS UP TO 30 MPH. CHANCE OF PRECIPITATION NEAR 100 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. NEW LITTLE OR NO SNOW
ACCUMULATION. LOWS IN THE LOWER 20S. NORTHEAST WINDS 10 TO
15 MPH, BECOMING WEST AFTER MIDNIGHT. CHANCE OF SNOW 60 PERCENT.
FRIDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF SNOW SHOWERS WITH A SLIGHT CHANCE OF RAIN SHOWERS IN
THE AFTERNOON. HIGHS IN THE MID 40S. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 20S.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 50S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE UPPER 50S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
MEMORIAL DAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH
HIGHS AROUND 60.
MONDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. BREEZY WITH LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS, A SLIGHT CHANCE OF THUNDERSTORMS AND SNOW
SHOWERS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 50S.
CHANCE OF PRECIPITATION 30 PERCENT.
WYZ019-201000-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF JEFFREY CITY
1217 AM MDT WED MAY 20 2026
...FREEZE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 8 AM MDT
WEDNESDAY...
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 20S. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. SOUTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
SOUTHWEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. RAIN SHOWERS LIKELY WITH A CHANCE OF
SNOW SHOWERS IN THE MORNING, THEN RAIN SHOWERS, SNOW SHOWERS WITH
A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW
ACCUMULATION. HIGHS IN THE UPPER 40S. SOUTHWEST WINDS AROUND
10 MPH, BECOMING NORTH IN THE AFTERNOON. CHANCE OF PRECIPITATION
90 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY. RAIN SHOWERS, SNOW SHOWERS WITH
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW AND
RAIN SHOWERS LIKELY AFTER MIDNIGHT. LITTLE OR NO SNOW
ACCUMULATION. LOWS AROUND 30. NORTH WINDS 10 TO 15 MPH WITH GUSTS
UP TO 30 MPH. CHANCE OF PRECIPITATION 80 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE LOWER 70S.
WYZ024-201000-
SALT RIVER AND WYOMING RANGES-
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S.
WEDNESDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.
HIGHS AROUND 50. WEST WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION
30 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF
THUNDERSTORMS. SNOW SHOWERS WITH RAIN SHOWERS LIKELY AFTER
MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. LOWS IN THE LOWER 30S.
WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY
SNOW AND RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE MID
40S. WEST WINDS AROUND 10 MPH, BECOMING NORTHWEST IN THE
AFTERNOON. CHANCE OF PRECIPITATION 80 PERCENT.
THURSDAY 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 UPPER 20S.
NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH IN THE EVENING.
CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE LOWER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 60.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE MID 60S.
WYZ030-201000-
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF WAMSUTTER
1217 AM MDT WED MAY 20 2026
REST OF TONIGHT
CLEAR. LOWS IN THE LOWER 20S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. WEST WINDS
AROUND 10 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST
WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY CLOUDY. RAIN SHOWERS LIKELY WITH A CHANCE OF
SNOW SHOWERS IN THE MORNING, THEN RAIN SHOWERS WITH A CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
HIGHS IN THE UPPER 40S. WEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS.
RAIN SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LITTLE OR
NO SNOW ACCUMULATION. LOWS AROUND 30. NORTH WINDS 10 TO 15 MPH
WITH GUSTS UP TO 25 MPH. CHANCE OF PRECIPITATION 60 PERCENT.
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.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SUNDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
TUESDAY
PARTLY CLOUDY AND BREEZY. HIGHS IN THE LOWER 70S.
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