974
FPUS55 KRIW 181649
ZFPRIW
ZONE FORECAST PRODUCT FOR WESTERN AND CENTRAL WYOMING
NATIONAL WEATHER SERVICE RIVERTON WY
1047 AM MDT MON MAY 18 2026
WYZ020-182200-
NATRONA COUNTY LOWER ELEVATIONS-
INCLUDING THE CITY OF CASPER
1047 AM MDT MON MAY 18 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
SNOW SHOWERS. BLOWING SNOW THIS MORNING. PATCHY BLOWING
SNOW THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS MORNING WITH
VISIBILITY ONE QUARTER MILE OR LESS AT TIMES. SNOW ACCUMULATION
OF 2 TO 9 INCHES. BREEZY, COOLER WITH HIGHS IN THE MID 30S. NORTH
WINDS 20 TO 25 MPH. GUSTS UP TO 40 MPH THIS MORNING. CHANCE OF
SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AND RAIN SHOWERS IN
THE EVENING. PATCHY FOG IN THE EVENING. LOWS IN THE MID 20S.
NORTH WINDS AROUND 10 MPH IN THE EVENING. CHANCE OF PRECIPITATION
30 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 40S. SOUTHWEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. SOUTHWEST
WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
THURSDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF
RAIN 50 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 30S. CHANCE OF RAIN
30 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE MORNING,
THEN A SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF RAIN 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 70S.
WYZ017-182200-
WIND RIVER BASIN-
INCLUDING THE CITIES OF RIVERTON AND SHOSHONI
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
AREAS OF BLOWING SNOW THIS MORNING. SNOW SHOWERS THIS
MORNING, THEN SNOW SHOWERS WITH A CHANCE OF RAIN SHOWERS THIS
AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS MORNING WITH
VISIBILITY ONE QUARTER MILE OR LESS AT TIMES. SNOW ACCUMULATION
UP TO 9 INCHES. WINDY WITH HIGHS IN THE UPPER 30S. NORTH WINDS
20 TO 30 MPH WITH GUSTS UP TO 45 MPH. CHANCE OF PRECIPITATION
90 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS
IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE
MID 20S. NORTHEAST WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH IN
THE EVENING. CHANCE OF PRECIPITATION 30 PERCENT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. SOUTH WINDS
10 TO 15 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 30. SOUTH WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. SOUTH WINDS
10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
THURSDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS
IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF RAIN 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY WITH A 20 PERCENT CHANCE OF RAIN
SHOWERS. LOWS IN THE MID 30S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
WYZ018-182200-
LANDER FOOTHILLS-
INCLUDING THE CITY OF LANDER
1047 AM MDT MON MAY 18 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
AREAS OF BLOWING SNOW THIS MORNING. SNOW SHOWERS THIS
MORNING, THEN SNOW SHOWERS WITH A CHANCE OF RAIN SHOWERS THIS
AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS MORNING. SNOW
ACCUMULATION OF 3 TO 8 INCHES. BREEZY WITH HIGHS IN THE MID 30S.
NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH. CHANCE OF
PRECIPITATION 90 PERCENT.
TONIGHT
PATCHY FOG IN THE EVENING. MOSTLY CLOUDY WITH A CHANCE
OF SNOW AND RAIN SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER
MIDNIGHT. LOWS IN THE LOWER 20S. CHANCE OF PRECIPITATION
30 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 40S. SOUTHEAST WINDS AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 20S. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP
TO 25 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 60. SOUTH WINDS AROUND
10 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. LOWS IN THE MID 30S.
THURSDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF
RAIN 50 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY WITH
A CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S.
CHANCE OF RAIN 30 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE UPPER 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ028-182200-
ROCK SPRINGS AND GREEN RIVER-
INCLUDING THE CITIES OF ROCK SPRINGS AND GREEN RIVER
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
CLOUDY. AREAS OF BLOWING SNOW THIS MORNING. SNOW SHOWERS
THIS MORNING, THEN SNOW SHOWERS LIKELY WITH A SLIGHT CHANCE OF
THUNDERSTORMS THIS AFTERNOON WITH VISIBILITY ONE QUARTER MILE OR
LESS AT TIMES. SNOW ACCUMULATION OF 1 TO 6 INCHES. WINDY WITH
HIGHS IN THE MID 30S. NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS UP
TO 50 MPH, DIMINISHING TO 15 TO 20 MPH WITH GUSTS UP TO 30 MPH
THIS AFTERNOON. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 20S. SOUTHEAST WINDS
AROUND 10 MPH IN THE EVENING.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 40S.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. WEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
THURSDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF RAIN
20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ013-182200-
JACKSON HOLE-
INCLUDING THE CITY OF JACKSON
1047 AM MDT MON MAY 18 2026
TODAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. A SLIGHT
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS THIS AFTERNOON. BREEZY
WITH HIGHS IN THE MID 40S. NORTH WINDS 15 TO 20 MPH. GUSTS UP TO
35 MPH THIS MORNING. CHANCE OF PRECIPITATION 30 PERCENT.
TONIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS IN
THE MID 20S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN
THE EVENING.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. WEST WINDS AROUND 10 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 30. SOUTHWEST WINDS AROUND 10 MPH IN THE EVENING.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 10 MPH WITH
GUSTS UP TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN AND SNOW
SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION. LOWS IN
THE LOWER 30S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS
IN THE UPPER 50S. CHANCE OF PRECIPITATION 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE MORNING, THEN A CHANCE OF
RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
LOWER 60S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
WYZ003-182200-
CODY FOOTHILLS-
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY. PATCHY BLOWING SNOW THIS MORNING. SNOW SHOWERS,
MAINLY THIS MORNING. SNOW ACCUMULATION UP TO 2 INCHES. WINDY WITH
HIGHS IN THE LOWER 40S. NORTH WINDS 25 TO 35 MPH WITH GUSTS UP TO
50 MPH. CHANCE OF SNOW 80 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN THE
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. BREEZY WITH LOWS IN
THE UPPER 20S. NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH
IN THE EVENING. CHANCE OF SNOW 30 PERCENT.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. SOUTH WINDS AROUND 10 MPH, BECOMING
SOUTHEAST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 30S. SOUTH WINDS 10 TO 15 MPH, BECOMING SOUTHWEST
AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER 60S. SOUTHWEST
WINDS AROUND 10 MPH, BECOMING WEST IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS AROUND 40. CHANCE OF RAIN
70 PERCENT.
THURSDAY
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A CHANCE OF RAIN SHOWERS. A 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 MID 50S.
CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A
SLIGHT CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER
30S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF
RAIN 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 50.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY
WITH HIGHS IN THE MID 70S.
WYZ004-182200-
NORTH BIGHORN BASIN-
INCLUDING THE CITIES OF BASIN, GREYBULL, LOVELL, POWELL,
AND SHELL
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY. A CHANCE OF SNOW SHOWERS WITH A SLIGHT CHANCE OF
RAIN SHOWERS THIS MORNING. WINDY WITH HIGHS AROUND 50. NORTH
WINDS 20 TO 30 MPH. GUSTS UP TO 50 MPH THIS MORNING. CHANCE OF
PRECIPITATION 30 PERCENT.
TONIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. BREEZY
WITH LOWS AROUND 30. NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO
30 MPH IN THE EVENING.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 60. SOUTH WINDS AROUND
10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE MID 30S. SOUTHEAST WINDS 15 TO 20 MPH
WITH GUSTS UP TO 40 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 70. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. BREEZY WITH LOWS
AROUND 40. CHANCE OF RAIN 30 PERCENT.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. WINDY WITH HIGHS AROUND 60.
CHANCE OF RAIN 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF. LOWS IN THE
UPPER 30S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 70.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS
AROUND 80.
WYZ006-182200-
SOUTHEAST BIGHORN BASIN-
INCLUDING THE CITIES OF TEN SLEEP AND WORLAND
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY WITH A CHANCE OF RAIN SHOWERS. SNOW SHOWERS. SNOW
ACCUMULATION UP TO 4 INCHES. BREEZY WITH HIGHS IN THE MID 40S.
NORTHWEST WINDS 20 TO 25 MPH WITH GUSTS UP TO 45 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
TONIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. BREEZY
WITH LOWS AROUND 30. NORTHWEST WINDS 15 TO 20 MPH IN THE EVENING.
TUESDAY
MOSTLY SUNNY. HIGHS AROUND 60. SOUTH WINDS AROUND
10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 30S. SOUTHEAST
WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A SLIGHT CHANCE OF. LOWS AROUND 40.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS IN THE
MORNING, THEN PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS AROUND 60.
CHANCE OF RAIN 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A SLIGHT
CHANCE OF. HIGHS IN THE UPPER 60S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80.
WYZ005-182200-
SOUTHWEST BIGHORN BASIN-
INCLUDING THE CITY OF THERMOPOLIS
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY. PATCHY BLOWING SNOW THIS MORNING. SNOW SHOWERS
THIS MORNING, THEN SNOW SHOWERS LIKELY WITH A CHANCE OF RAIN
SHOWERS THIS AFTERNOON. SNOW ACCUMULATION UP TO 4 INCHES. WINDY
WITH HIGHS IN THE MID 40S. NORTH WINDS 20 TO 30 MPH WITH GUSTS UP
TO 50 MPH. CHANCE OF PRECIPITATION 80 PERCENT.
TONIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30. NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH
IN THE EVENING.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. SOUTH WINDS AROUND
10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 30S. SOUTH WINDS 10 TO 15 MPH WITH GUSTS UP TO
25 MPH.
WEDNESDAY
SUNNY IN THE MORNING, THEN BECOMING PARTLY CLOUDY.
HIGHS IN THE MID 60S. SOUTH WINDS AROUND 10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF. LOWS AROUND
40.
THURSDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS IN THE MORNING,
THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. BREEZY WITH HIGHS AROUND 60. CHANCE OF RAIN
50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AFTER
MIDNIGHT. LOWS IN THE UPPER 30S. CHANCE OF RAIN 20 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID
60S.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
WYZ023-182200-
STAR VALLEY-
INCLUDING THE CITIES OF AFTON, ALPINE, STAR VALLEY RANCH,
AND THAYNE
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY WITH A CHANCE OF SNOW SHOWERS. A CHANCE OF RAIN
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON.
HIGHS AROUND 50. NORTH WINDS AROUND 10 MPH. CHANCE OF
PRECIPITATION 40 PERCENT.
TONIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS IN
THE UPPER 20S. NORTH WINDS AROUND 10 MPH IN THE EVENING.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE MID 50S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 30.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 60. WEST WINDS AROUND 10 MPH WITH GUSTS UP
TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS IN THE LOWER 30S.
THURSDAY
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS IN
THE MORNING, THEN PARTLY CLOUDY IN THE AFTERNOON. HIGHS AROUND
60. CHANCE OF RAIN 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
FRIDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS. HIGHS IN THE MID 60S. CHANCE OF RAIN 20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 70S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
WYZ025-182200-
UPPER GREEN RIVER BASIN FOOTHILLS-
INCLUDING THE CITY OF PINEDALE
1047 AM MDT MON MAY 18 2026
TODAY
SNOW SHOWERS THIS MORNING, THEN SNOW SHOWERS LIKELY WITH
A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON. SNOW
ACCUMULATION UP TO 1 INCH. BREEZY WITH HIGHS IN THE LOWER 40S.
NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 35 MPH, BECOMING
NORTHEAST AROUND 10 MPH WITH GUSTS UP TO 25 MPH THIS AFTERNOON.
CHANCE OF SNOW 80 PERCENT.
TONIGHT
MOSTLY CLOUDY. SNOW SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS LIKELY AFTER
MIDNIGHT. SNOW ACCUMULATION UP TO 2 INCHES. LOWS IN THE MID 20S.
SOUTHEAST WINDS AROUND 10 MPH IN THE EVENING. CHANCE OF SNOW
80 PERCENT.
TUESDAY
PARTLY CLOUDY. HIGHS AROUND 50.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 20S.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 50S. WEST WINDS AROUND 10 MPH WITH GUSTS
UP TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 30.
THURSDAY
PARTLY CLOUDY 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 50S.
CHANCE OF PRECIPITATION 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF RAIN
30 PERCENT.
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 MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 70.
WYZ026-182200-
UPPER GREEN RIVER BASIN-
INCLUDING THE CITIES OF LA BARGE, BIG PINEY, AND FARSON
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
CLOUDY. PATCHY BLOWING SNOW THIS MORNING. SNOW SHOWERS
THIS MORNING, THEN SNOW SHOWERS LIKELY WITH A SLIGHT CHANCE OF
THUNDERSTORMS THIS AFTERNOON. SNOW ACCUMULATION UP TO 2 INCHES.
BREEZY WITH HIGHS AROUND 40. NORTH WINDS 20 TO 25 MPH WITH GUSTS
UP TO 40 MPH, BECOMING EAST 10 TO 15 MPH WITH GUSTS UP TO 30 MPH
THIS AFTERNOON. CHANCE OF SNOW 90 PERCENT.
TONIGHT
CLOUDY. SNOW SHOWERS WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. NEW SNOW ACCUMULATION UP TO 3 INCHES. LOWS IN THE LOWER
20S. SOUTH WINDS 10 TO 15 MPH. CHANCE OF SNOW 80 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 40S.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. SOUTHWEST
WINDS AROUND 10 MPH IN THE EVENING.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. WEST WINDS
10 TO 15 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60.
CHANCE OF RAIN 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
60S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 70S.
WYZ010-182200-
NORTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF BUFFALO
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY. PATCHY BLOWING SNOW THIS MORNING. SNOW SHOWERS
WITH A SLIGHT CHANCE OF RAIN SHOWERS THIS MORNING, THEN SNOW
SHOWERS LIKELY WITH A CHANCE OF RAIN SHOWERS THIS AFTERNOON. SNOW
ACCUMULATION UP TO 1 INCH. BREEZY WITH HIGHS IN THE LOWER 40S.
NORTH WINDS 20 TO 25 MPH WITH GUSTS UP TO 40 MPH. CHANCE OF
PRECIPITATION 80 PERCENT.
TONIGHT
CLOUDY IN THE EVENING, THEN BECOMING PARTLY CLOUDY.
BREEZY WITH LOWS IN THE UPPER 20S. NORTH WINDS 15 TO 20 MPH WITH
GUSTS UP TO 30 MPH IN THE EVENING.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 30S. SOUTH WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 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 WITH GUSTS UP TO 20 MPH IN THE MORNING.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS.
LOWS IN THE UPPER 30S. CHANCE OF RAIN 20 PERCENT.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A SLIGHT
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN
THE UPPER 50S. CHANCE OF RAIN 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS
AND THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 30S. CHANCE OF
RAIN 20 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE
OF RAIN 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS AROUND 80.
WYZ011-182200-
SOUTHEAST JOHNSON COUNTY-
INCLUDING THE CITY OF KAYCEE
1047 AM MDT MON MAY 18 2026
TODAY
PATCHY BLOWING SNOW THIS MORNING. SNOW SHOWERS. RAIN
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS
AFTERNOON. SNOW ACCUMULATION UP TO 3 INCHES. BREEZY WITH HIGHS
AROUND 40. NORTH WINDS 15 TO 25 MPH WITH GUSTS UP TO 35 MPH.
CHANCE OF PRECIPITATION 80 PERCENT.
TONIGHT
CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER
20S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE
EVENING. CHANCE OF PRECIPITATION 30 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 50S. SOUTHWEST WINDS AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 30. SOUTH WINDS 10 TO
15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF. LOWS IN THE
UPPER 30S.
THURSDAY
PARTLY CLOUDY IN THE MORNING, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN
THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF RAIN 50 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 30S. CHANCE OF RAIN
30 PERCENT.
FRIDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE MID 60S. CHANCE OF RAIN 20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE MID 70S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 70S.
WYZ027-182200-
SOUTH LINCOLN COUNTY-
INCLUDING THE CITIES OF KEMMERER AND COKEVILLE
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
CLOUDY. SNOW SHOWERS THIS MORNING, THEN A CHANCE OF SNOW
SHOWERS, RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS
AFTERNOON. STORM TOTAL SNOW ACCUMULATION AROUND AN INCH. HIGHS
AROUND 40. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH,
BECOMING SOUTHEAST THIS AFTERNOON. CHANCE OF PRECIPITATION
90 PERCENT.
TONIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW AND RAIN SHOWERS IN
THE EVENING. LOWS IN THE LOWER 20S. SOUTH WINDS AROUND 10 MPH IN
THE EVENING. CHANCE OF PRECIPITATION 30 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 40S.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE MID 50S. WEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
THURSDAY
PARTLY CLOUDY AND BREEZY. HIGHS AROUND 60.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
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
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 70S.
WYZ016-182200-
UPPER WIND RIVER BASIN-
INCLUDING THE CITY OF DUBOIS
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
CLOUDY. SNOW SHOWERS THIS MORNING, THEN SNOW SHOWERS
LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON.
STORM TOTAL SNOW ACCUMULATION AROUND AN INCH. BREEZY WITH HIGHS
IN THE UPPER 30S. EAST WINDS 15 TO 20 MPH WITH GUSTS UP TO
35 MPH. CHANCE OF SNOW 80 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN THE
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE MID 20S.
EAST WINDS 10 TO 15 MPH IN THE EVENING. CHANCE OF SNOW
30 PERCENT.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 50. SOUTH WINDS AROUND 10 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 20S. SOUTHWEST WINDS 10 TO 15 MPH, BECOMING
WEST AFTER MIDNIGHT.
WEDNESDAY
SUNNY IN THE MORNING, THEN BECOMING PARTLY CLOUDY.
HIGHS IN THE UPPER 50S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO
25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S. CHANCE OF
PRECIPITATION 20 PERCENT.
THURSDAY
PARTLY CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS IN
THE MORNING, THEN A SLIGHT CHANCE OF RAIN SHOWERS, THUNDERSTORMS
AND SNOW SHOWERS IN THE AFTERNOON. LITTLE OR NO SNOW
ACCUMULATION. HIGHS IN THE MID 50S. CHANCE OF PRECIPITATION
50 PERCENT.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. PARTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS.
LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF RAIN
30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70.
WYZ001-182200-
YELLOWSTONE NATIONAL PARK-
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL
1047 AM MDT MON MAY 18 2026
TODAY
MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS THIS AFTERNOON.
BREEZY WITH HIGHS IN THE UPPER 30S. NORTH WINDS 15 TO 20 MPH WITH
GUSTS UP TO 30 MPH. CHANCE OF SNOW 30 PERCENT.
TONIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. COLD WITH
LOWS AROUND 20. NORTH WINDS 10 TO 15 MPH IN THE EVENING.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 40S. WEST WINDS AROUND 10 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 20S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP
TO 20 MPH IN THE EVENING.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY NIGHT
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. MOSTLY CLOUDY WITH A CHANCE OF
SNOW SHOWERS. LITTLE OR NO SNOW ACCUMULATION. LOWS IN THE UPPER
20S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE
UPPER 40S. CHANCE OF SNOW 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A CHANCE OF SNOW SHOWERS, A
SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE EVENING.
LOWS IN THE UPPER 20S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS, THUNDERSTORMS
AND SNOW SHOWERS IN THE AFTERNOON. HIGHS IN THE MID 50S. CHANCE
OF PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
SATURDAY
PARTLY CLOUDY. HIGHS AROUND 60.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
SUNDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 60S.
WYZ029-182200-
FLAMING GORGE-
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
CLOUDY. SNOW SHOWERS THIS MORNING, THEN SNOW SHOWERS
LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON.
BLOWING SNOW THIS MORNING, THEN AREAS OF BLOWING SNOW THIS
AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS MORNING WITH
VISIBILITY ONE QUARTER MILE OR LESS AT TIMES. SNOW ACCUMULATION
OF 2 TO 5 INCHES. WINDY WITH HIGHS IN THE MID 30S. NORTHEAST
WINDS 20 TO 30 MPH. GUSTS UP TO 50 MPH THIS MORNING. CHANCE OF
SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING PARTLY
CLOUDY. LOWS IN THE MID 20S. EAST WINDS 10 TO 15 MPH IN THE
EVENING.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 40S.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 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.
THURSDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF
RAIN 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF
RAIN 20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 40.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 70.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ022-182200-
CASPER MOUNTAIN-
1047 AM MDT MON MAY 18 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
SNOW SHOWERS. BLOWING SNOW THIS MORNING. AREAS OF
BLOWING SNOW THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS
MORNING WITH VISIBILITY ONE QUARTER MILE OR LESS AT TIMES. SNOW
ACCUMULATION OF 3 TO 12 INCHES. WINDY AND MUCH COOLER WITH HIGHS
IN THE UPPER 20S. NORTHEAST WINDS 20 TO 30 MPH WITH GUSTS UP TO
40 MPH. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN THE
EVENING. AREAS OF FOG IN THE EVENING. COLD WITH LOWS AROUND 20.
NORTH WINDS 10 TO 15 MPH IN THE EVENING. CHANCE OF SNOW
30 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 30S.
TUESDAY NIGHT
MOSTLY CLEAR. COLD WITH LOWS AROUND 20. SOUTH
WINDS AROUND 10 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTHWEST
WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH.
WEDNESDAY NIGHT
MOSTLY CLEAR IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. LOWS AROUND 30.
THURSDAY
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY CLOUDY WITH
A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
HIGHS AROUND 50. CHANCE OF RAIN 40 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS IN THE EVENING. LOWS IN THE LOWER
30S. CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS. A
CHANCE OF SNOW SHOWERS IN THE MORNING, THEN A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S. CHANCE OF
PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.
WYZ002-182200-
ABSAROKA MOUNTAINS-
1047 AM MDT MON MAY 18 2026
TODAY
PATCHY BLOWING SNOW THIS MORNING. SNOW SHOWERS THIS
MORNING, THEN SNOW SHOWERS LIKELY WITH A SLIGHT CHANCE OF
THUNDERSTORMS THIS AFTERNOON WITH VISIBILITY ONE QUARTER MILE OR
LESS AT TIMES. SNOW ACCUMULATION UP TO 4 INCHES. BREEZY WITH
HIGHS IN THE LOWER 30S. NORTHEAST WINDS 15 TO 20 MPH. GUSTS UP TO
40 MPH THIS MORNING. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY IN THE EVENING,
THEN PARTLY CLOUDY AFTER MIDNIGHT. NEW SNOW ACCUMULATION UP TO
1 INCH. COLD WITH LOWS 11 TO 21. NORTHEAST WINDS 10 TO 15 MPH
WITH GUSTS UP TO 25 MPH, BECOMING WEST AFTER MIDNIGHT. CHANCE OF
SNOW 60 PERCENT.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 40. WEST WINDS AROUND 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 20S. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP
TO 25 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 MID 40S. WEST WINDS
10 TO 15 MPH WITH GUSTS UP TO 30 MPH. CHANCE OF PRECIPITATION
40 PERCENT.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF
THUNDERSTORMS. SNOW AND RAIN SHOWERS LIKELY IN THE EVENING, THEN
A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW
ACCUMULATION. LOWS IN THE UPPER 20S. CHANCE OF PRECIPITATION
60 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. A CHANCE
OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE LOWER
40S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. PARTLY CLOUDY WITH A CHANCE OF
SNOW SHOWERS. LOWS IN THE UPPER 20S. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS, RAIN AND SNOW
SHOWERS IN THE AFTERNOON. HIGHS IN THE UPPER 40S. CHANCE OF
PRECIPITATION 40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY
WITH HIGHS IN THE MID 50S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 50S.
WYZ007-182200-
OWL CREEK AND BRIDGER MOUNTAINS-
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY WITH SNOW SHOWERS. BLOWING SNOW THIS MORNING.
PATCHY BLOWING SNOW THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES
THIS MORNING WITH VISIBILITY ONE QUARTER MILE OR LESS AT TIMES.
SNOW ACCUMULATION OF 1 TO 6 INCHES. VERY WINDY WITH HIGHS IN THE
MID 30S. NORTH WINDS 30 TO 40 MPH WITH GUSTS UP TO 60 MPH,
DIMINISHING TO 20 TO 30 MPH WITH GUSTS UP TO 45 MPH THIS
AFTERNOON. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS IN
THE MID 20S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN
THE EVENING.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 40S. SOUTH WINDS
10 TO 15 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS AROUND 30. SOUTH WINDS 15 TO 20 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 50S. SOUTHWEST
WINDS 10 TO 15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN MOSTLY
CLOUDY WITH A CHANCE OF RAIN SHOWERS, SNOW SHOWERS WITH A SLIGHT
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE UPPER 30S.
CHANCE OF PRECIPITATION 30 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A CHANCE
OF SNOW SHOWERS IN THE MORNING, THEN A SLIGHT CHANCE OF
THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. LITTLE OR NO
SNOW ACCUMULATION. BREEZY WITH HIGHS IN THE LOWER 50S. CHANCE OF
PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND
SNOW SHOWERS. LOWS IN THE MID 30S. CHANCE OF PRECIPITATION
20 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF
RAIN 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 40S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 70S.
WYZ008-182200-
BIGHORN MOUNTAINS WEST-
1047 AM MDT MON MAY 18 2026
TODAY
SNOW SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS THIS
AFTERNOON. SNOW ACCUMULATION UP TO 7 INCHES. BREEZY WITH HIGHS IN
THE LOWER 30S. NORTH WINDS 15 TO 20 MPH. GUSTS UP TO 35 MPH THIS
MORNING. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY 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 25 MPH IN THE EVENING.
CHANCE OF SNOW 30 PERCENT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE MID 40S. WEST WINDS AROUND
10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 20S. SOUTH WINDS
10 TO 15 MPH WITH GUSTS UP TO 35 MPH.
WEDNESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
50S. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A
CHANCE OF RAIN AND SNOW SHOWERS. LOWS IN THE MID 30S. CHANCE OF
PRECIPITATION 30 PERCENT.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW SHOWERS.
A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO
SNOW ACCUMULATION. HIGHS IN THE UPPER 40S. CHANCE OF
PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING. PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND SNOW
SHOWERS. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
20 PERCENT.
FRIDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS WITH A
SLIGHT CHANCE OF RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS
IN THE AFTERNOON. HIGHS IN THE LOWER 50S. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 60S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE MID 60S.
WYZ009-182200-
BIGHORN MOUNTAINS SOUTHEAST-
1047 AM MDT MON MAY 18 2026
TODAY
AREAS OF BLOWING SNOW THIS MORNING. SNOW SHOWERS THIS
MORNING, THEN SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS
THIS AFTERNOON. SNOW ACCUMULATION OF 1 TO 7 INCHES. BREEZY WITH
HIGHS IN THE LOWER 30S. NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO
35 MPH. CHANCE OF SNOW 90 PERCENT.
TONIGHT
PATCHY FOG IN THE EVENING. CLOUDY WITH SNOW SHOWERS
LIKELY IN THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. NEW
SNOW ACCUMULATION UP TO 1 INCH. LOWS IN THE LOWER 20S. NORTHEAST
WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH, BECOMING WEST AFTER
MIDNIGHT. CHANCE OF SNOW 60 PERCENT.
TUESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 40S. WEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 20S. SOUTHWEST
WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER
50S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN BECOMING
MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS. A SLIGHT CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 30S. CHANCE OF
PRECIPITATION 30 PERCENT.
THURSDAY
SNOW SHOWERS LIKELY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN RAIN SHOWERS LIKELY WITH A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION.
HIGHS IN THE UPPER 40S. CHANCE OF PRECIPITATION 70 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 IN THE LOWER
30S. CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. A SLIGHT
CHANCE OF RAIN SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 50S.
CHANCE OF PRECIPITATION 40 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE LOWER 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 40S.
SUNDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN
THE MID 60S.
WYZ012-182200-
TETON AND GROS VENTRE MOUNTAINS-
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY WITH SNOW SHOWERS LIKELY. A SLIGHT CHANCE OF
THUNDERSTORMS THIS AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH.
BREEZY WITH HIGHS IN THE MID 30S. NORTHEAST WINDS 20 TO 25 MPH
WITH GUSTS UP TO 35 MPH, DIMINISHING TO 10 TO 15 MPH WITH GUSTS
UP TO 25 MPH THIS AFTERNOON. CHANCE OF SNOW 60 PERCENT.
TONIGHT
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN THE
EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS IN THE LOWER 20S.
NORTHEAST WINDS 10 TO 15 MPH IN THE EVENING. CHANCE OF SNOW
30 PERCENT.
TUESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE LOWER 40S. WEST WINDS AROUND 10 MPH IN THE
AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 20S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP
TO 20 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE UPPER 40S. SOUTH WINDS AROUND 10 MPH,
BECOMING WEST IN THE AFTERNOON. GUSTS UP TO 30 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN
SHOWERS, THUNDERSTORMS AND SNOW SHOWERS IN THE EVENING, THEN A
CHANCE OF SNOW AND RAIN SHOWERS AFTER MIDNIGHT. LITTLE OR NO SNOW
ACCUMULATION. LOWS IN THE LOWER 30S. CHANCE OF PRECIPITATION
50 PERCENT.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW SHOWERS. A
SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
HIGHS IN THE UPPER 40S. CHANCE OF PRECIPITATION 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS, RAIN
AND SNOW SHOWERS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS,
RAIN AND SNOW SHOWERS IN THE AFTERNOON. HIGHS IN THE LOWER 50S.
CHANCE OF PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
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
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY
WITH HIGHS IN THE LOWER 60S.
WYZ014-182200-
WIND RIVER MOUNTAINS WEST-
1047 AM MDT MON MAY 18 2026
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
SNOW SHOWERS. BLOWING SNOW THIS MORNING. AREAS OF
BLOWING SNOW THIS AFTERNOON. A SLIGHT CHANCE OF THUNDERSTORMS
THIS AFTERNOON. VISIBILITY ONE QUARTER MILE OR LESS AT TIMES THIS
MORNING. SNOW ACCUMULATION UP TO 9 INCHES. WINDY WITH HIGHS IN
THE UPPER 20S. NORTHEAST WINDS 25 TO 35 MPH WITH GUSTS UP TO
60 MPH, DIMINISHING TO 20 TO 25 MPH WITH GUSTS UP TO 40 MPH THIS
AFTERNOON. CHANCE OF SNOW 80 PERCENT.
TONIGHT
CLOUDY. PATCHY FOG IN THE EVENING. SNOW SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN SNOW SHOWERS
LIKELY AFTER MIDNIGHT. STORM TOTAL SNOW ACCUMULATION OF 2 TO
4 INCHES. COLD WITH LOWS 13 TO 23. EAST WINDS 10 TO 15 MPH IN THE
EVENING. CHANCE OF SNOW 80 PERCENT.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS
AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE LOWER 20S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS
UP TO 20 MPH IN THE EVENING.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS IN THE MID 40S. WEST WINDS 10 TO 15 MPH WITH GUSTS
UP TO 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A SLIGHT CHANCE OF. LOWS IN THE UPPER 20S.
THURSDAY
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. A SLIGHT
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. LITTLE
OR NO SNOW ACCUMULATION. HIGHS IN THE MID 40S. CHANCE OF
PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS
IN THE EVENING. A SLIGHT CHANCE OF SNOW SHOWERS. LOWS IN THE
UPPER 20S. CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS, RAIN AND SNOW
SHOWERS 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 UPPER 20S.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. BREEZY WITH HIGHS IN THE MID 50S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 50S.
WYZ015-182200-
WIND RIVER MOUNTAINS EAST-
1047 AM MDT MON MAY 18 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
BLOWING SNOW THIS MORNING. SNOW SHOWERS THIS MORNING,
THEN SNOW SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS
AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS MORNING WITH
VISIBILITY ONE QUARTER MILE OR LESS AT TIMES. SNOW ACCUMULATION
UP TO 10 INCHES. WINDY WITH HIGHS IN THE MID 20S. NORTHEAST WINDS
20 TO 30 MPH WITH GUSTS UP TO 50 MPH, DIMINISHING TO 15 TO 20 MPH
WITH GUSTS UP TO 35 MPH THIS AFTERNOON. CHANCE OF SNOW
90 PERCENT.
TONIGHT
MOSTLY CLOUDY. PATCHY FOG IN THE EVENING. SNOW
SHOWERS, MAINLY IN THE EVENING. NEW SNOW ACCUMULATION UP TO
1 INCH. COLD WITH LOWS 10 TO 20. EAST WINDS AROUND 10 MPH WITH
GUSTS UP TO 20 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT. CHANCE OF
SNOW 80 PERCENT.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE MID 30S. SOUTHWEST WINDS
AROUND 10 MPH.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
COLD WITH LOWS AROUND 20. SOUTHWEST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 40S. WEST WINDS
10 TO 15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 20S.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS. A CHANCE
OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS IN THE LOWER
40S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
A CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE
OF THUNDERSTORMS IN THE EVENING. PARTLY CLOUDY WITH A CHANCE OF
SNOW SHOWERS. LOWS IN THE MID 20S. CHANCE OF PRECIPITATION
30 PERCENT.
FRIDAY
PARTLY CLOUDY. A CHANCE OF THUNDERSTORMS, SNOW AND RAIN
SHOWERS IN THE AFTERNOON. HIGHS IN THE UPPER 40S. CHANCE OF
PRECIPITATION 30 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
AROUND 30.
SATURDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 50S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
BREEZY WITH LOWS IN THE MID 30S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 50S.
WYZ019-182200-
GREEN MOUNTAINS AND RATTLESNAKE RANGE-
INCLUDING THE CITY OF JEFFREY CITY
1047 AM MDT MON MAY 18 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
SNOW SHOWERS. BLOWING SNOW THIS MORNING. AREAS OF
BLOWING SNOW THIS AFTERNOON. SNOW MAY BE HEAVY AT TIMES THIS
MORNING WITH VISIBILITY ONE QUARTER MILE OR LESS AT TIMES. SNOW
ACCUMULATION OF 1 TO 13 INCHES. WINDY, COOLER WITH HIGHS IN THE
LOWER 30S. NORTH WINDS 25 TO 35 MPH. GUSTS UP TO 55 MPH THIS
MORNING. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY. A CHANCE OF SNOW SHOWERS IN THE
EVENING. PATCHY FOG IN THE EVENING. COLD WITH LOWS 16 TO 22.
NORTHEAST WINDS 10 TO 15 MPH IN THE EVENING. CHANCE OF SNOW
30 PERCENT.
TUESDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 30S.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 20S. SOUTH WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS AROUND 50. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
THURSDAY
PARTLY CLOUDY WITH A CHANCE OF 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.
HIGHS IN THE LOWER 50S. CHANCE OF PRECIPITATION 50 PERCENT.
THURSDAY NIGHT
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING
PARTLY CLOUDY. A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. A
SLIGHT CHANCE OF RAIN AND SNOW SHOWERS. LOWS IN THE LOWER 30S.
CHANCE OF PRECIPITATION 20 PERCENT.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER
50S.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE MID 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
WYZ024-182200-
SALT RIVER AND WYOMING RANGES-
1047 AM MDT MON MAY 18 2026
TODAY
CLOUDY. SNOW SHOWERS THIS MORNING, THEN SNOW SHOWERS
LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON. SNOW
ACCUMULATION UP TO 3 INCHES. HIGHS IN THE MID 30S. NORTH WINDS
10 TO 15 MPH. GUSTS UP TO 30 MPH THIS MORNING. CHANCE OF SNOW
90 PERCENT.
TONIGHT
PATCHY FOG IN THE EVENING. MOSTLY CLOUDY WITH SNOW
SHOWERS LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS AFTER
MIDNIGHT. NEW SNOW ACCUMULATION UP TO 1 INCH. LOWS IN THE LOWER
20S. SOUTHWEST WINDS AROUND 10 MPH IN THE EVENING. CHANCE OF SNOW
60 PERCENT.
TUESDAY
PARTLY CLOUDY. HIGHS IN THE LOWER 40S. SOUTHWEST WINDS
AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE MID 20S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP
TO 20 MPH, BECOMING SOUTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. HIGHS AROUND 50. SOUTHWEST WINDS 10 TO 15 MPH. GUSTS UP
TO 30 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
THURSDAY
PARTLY CLOUDY 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 LOWER 50S.
CHANCE OF PRECIPITATION 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
FRIDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS,
THUNDERSTORMS AND SNOW SHOWERS. HIGHS IN THE MID 50S. CHANCE OF
PRECIPITATION 20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY
CLOUDY. BREEZY WITH HIGHS IN THE LOWER 60S.
SATURDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.
LOWS IN THE UPPER 30S.
SUNDAY
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 60S.
WYZ030-182200-
EAST SWEETWATER COUNTY-
INCLUDING THE CITY OF WAMSUTTER
1047 AM MDT MON MAY 18 2026
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM MDT THIS
EVENING...
TODAY
SNOW SHOWERS THIS MORNING, THEN SNOW SHOWERS WITH A
SLIGHT CHANCE OF THUNDERSTORMS THIS AFTERNOON. BLOWING SNOW. SNOW
MAY BE HEAVY AT TIMES THIS MORNING WITH VISIBILITY ONE QUARTER
MILE OR LESS AT TIMES. SNOW ACCUMULATION UP TO 9 INCHES. VERY
WINDY AND COOLER WITH HIGHS IN THE LOWER 30S. NORTHEAST WINDS
30 TO 40 MPH. GUSTS UP TO 60 MPH, DECREASING TO 50 MPH THIS
AFTERNOON. CHANCE OF SNOW 90 PERCENT.
TONIGHT
MOSTLY CLOUDY. PATCHY FOG. BREEZY, COLD WITH LOWS
16 TO 22. NORTHEAST WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH IN
THE EVENING.
TUESDAY
MOSTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN
THE UPPER 30S.
TUESDAY NIGHT
MOSTLY CLEAR. COLD WITH LOWS AROUND 20.
WEDNESDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 50S. WEST WINDS
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 30.
THURSDAY
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID
50S. CHANCE OF RAIN 20 PERCENT.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS IN THE LOWER 30S.
FRIDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 60. CHANCE OF RAIN
20 PERCENT.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS
IN THE MID 30S.
SATURDAY
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS AROUND 40.
SUNDAY
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.
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