687  
FPUS55 KRIW 210021  
ZFPRIW  
 
ZONE FORECAST PRODUCT FOR WESTERN AND CENTRAL WYOMING  
NATIONAL WEATHER SERVICE RIVERTON WY  
618 PM MDT WED MAY 20 2026  
 
WYZ020-211000-  
NATRONA COUNTY LOWER ELEVATIONS-  
INCLUDING THE CITY OF CASPER  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS  
10 TO 15 MPH, BECOMING NORTH AFTER MIDNIGHT.    
THURSDAY  
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. BREEZY WITH HIGHS IN THE LOWER 50S. NORTH WINDS AROUND  
10 MPH WITH GUSTS UP TO 20 MPH, INCREASING TO 15 TO 20 MPH WITH  
GUSTS UP TO 30 MPH IN THE AFTERNOON. CHANCE OF RAIN 80 PERCENT.    
THURSDAY NIGHT  
CLOUDY. RAIN SHOWERS, SNOW SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN RAIN AND SNOW  
SHOWERS LIKELY AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH.  
BREEZY WITH LOWS IN THE LOWER 30S. NORTH WINDS 15 TO 20 MPH WITH  
GUSTS UP TO 30 MPH, BECOMING NORTHWEST AROUND 10 MPH WITH GUSTS  
UP TO 20 MPH AFTER MIDNIGHT. CHANCE OF PRECIPITATION 80 PERCENT.    
FRIDAY  
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS IN THE UPPER 50S. WEST WINDS AROUND 10 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST  
WINDS AROUND 10 MPH.    
SATURDAY  
MOSTLY SUNNY. HIGHS AROUND 70.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 40S.    
SUNDAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 70S.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 40S.    
MEMORIAL DAY  
SUNNY. HIGHS AROUND 80.    
MONDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 50.    
TUESDAY  
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 70S. CHANCE OF  
RAIN 30 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN PARTLY CLOUDY  
WITH A SLIGHT CHANCE OF SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS  
IN THE MID 40S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ017-211000-  
WIND RIVER BASIN-  
INCLUDING THE CITIES OF RIVERTON AND SHOSHONI  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS 10 TO  
15 MPH, BECOMING EAST AFTER MIDNIGHT.    
THURSDAY  
RAIN SHOWERS LIKELY WITH A CHANCE OF SNOW SHOWERS IN  
THE MORNING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH. BREEZY WITH HIGHS  
AROUND 50. NORTHEAST WINDS 15 TO 20 MPH WITH GUSTS UP TO 35 MPH.  
CHANCE OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY IN THE  
EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. BREEZY WITH LOWS IN  
THE LOWER 30S. NORTH WINDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH  
IN THE EVENING. CHANCE OF RAIN 60 PERCENT.    
FRIDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS IN THE UPPER 50S. SOUTHWEST WINDS AROUND 10 MPH IN  
THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S. SOUTHEAST WINDS AROUND 10 MPH, BECOMING  
SOUTHWEST AFTER MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS 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. LOWS IN THE UPPER 40S.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
BREEZY WITH HIGHS IN THE UPPER 70S. CHANCE OF RAIN 20 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE MID 40S. CHANCE  
OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S.  
CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ018-211000-  
LANDER FOOTHILLS-  
INCLUDING THE CITY OF LANDER  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 30S. SOUTHWEST WINDS  
AROUND 10 MPH.    
THURSDAY  
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. CHANCE OF  
PRECIPITATION 90 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH A  
CHANCE OF SNOW SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER  
MIDNIGHT. LOWS AROUND 30. NORTHWEST WINDS 10 TO 15 MPH WITH GUSTS  
UP TO 25 MPH IN THE EVENING. CHANCE OF PRECIPITATION 40 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE UPPER 50S. EAST WINDS  
AROUND 10 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH.    
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 AROUND 80.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE MID 70S.  
CHANCE OF RAIN 20 PERCENT.    
TUESDAY NIGHT  
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS. BREEZY WITH LOWS  
IN THE MID 40S. CHANCE OF RAIN 20 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A  
SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 20 PERCENT.  
 
 
 
WYZ028-211000-  
ROCK SPRINGS AND GREEN RIVER-  
INCLUDING THE CITIES OF ROCK SPRINGS AND GREEN RIVER  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. LOWS IN THE MID 30S. WEST WINDS 10 TO  
15 MPH.    
THURSDAY  
RAIN SHOWERS. SNOW SHOWERS LIKELY IN THE MORNING,  
THEN A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO  
SNOW ACCUMULATION. BREEZY WITH HIGHS IN THE MID 50S. WEST WINDS  
15 TO 20 MPH WITH GUSTS UP TO 30 MPH. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH RAIN SHOWERS, SNOW SHOWERS  
LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN  
PARTLY CLOUDY AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION.  
LOWS AROUND 30. NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS UP TO  
30 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 60 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE UPPER 50S.    
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 AROUND 40.    
SUNDAY  
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE OF RAIN 30 PERCENT.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 40.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE  
MID 70S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 40S.    
TUESDAY  
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE AFTERNOON. BREEZY WITH HIGHS AROUND 70. CHANCE OF RAIN  
30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 40.    
WEDNESDAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS  
AROUND 70.  
 
 
 
WYZ013-211000-  
JACKSON HOLE-  
INCLUDING THE CITY OF JACKSON  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
CLOUDY WITH A SLIGHT CHANCE OF THUNDERSTORMS. A CHANCE  
OF RAIN SHOWERS THIS EVENING, THEN RAIN AND SNOW SHOWERS AFTER  
MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. LOWS IN THE LOWER 30S.  
SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH THIS  
EVENING. CHANCE OF PRECIPITATION 80 PERCENT.    
THURSDAY  
RAIN SHOWERS, SNOW SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN RAIN SHOWERS LIKELY, A CHANCE  
OF THUNDERSTORMS AND SNOW SHOWERS LIKELY IN THE AFTERNOON. SNOW  
ACCUMULATION UP TO 1 INCH. HIGHS AROUND 50. NORTH WINDS AROUND  
10 MPH WITH GUSTS UP TO 25 MPH IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.  
LOWS IN THE UPPER 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 AROUND 60.    
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. LOWS IN THE UPPER 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
HIGHS IN THE LOWER 70S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 40.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. 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 AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE UPPER 60S. CHANCE OF RAIN 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS AROUND 40.  
CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN  
THE MORNING, THEN A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ003-211000-  
CODY FOOTHILLS-  
INCLUDING THE CITIES OF CLARK, CODY, AND MEETEETSE  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
CLOUDY. RAIN SHOWERS LIKELY THIS EVENING, THEN RAIN  
AND SNOW SHOWERS AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH.  
BREEZY WITH LOWS IN THE MID 30S. NORTH WINDS 15 TO 20 MPH. GUSTS  
UP TO 35 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.  
SNOW ACCUMULATION AROUND 5 INCHES. WINDY WITH HIGHS IN THE MID  
40S. NORTH WINDS 20 TO 30 MPH WITH GUSTS UP TO 50 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. HIGHS IN THE UPPER 50S. WEST WINDS AROUND  
10 MPH, BECOMING NORTHEAST WITH GUSTS UP TO 20 MPH IN THE  
AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 40. SOUTH WINDS AROUND 10 MPH, BECOMING SOUTHWEST AFTER  
MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS AROUND 70.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 40S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. A SLIGHT CHANCE OF. 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 IN THE UPPER 70S.    
MONDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE LOWER 50S.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH  
HIGHS IN THE MID 70S. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE UPPER 40S. CHANCE  
OF RAIN 40 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. BREEZY WITH HIGHS IN THE LOWER 70S. CHANCE OF RAIN  
40 PERCENT.  
 
 
 
WYZ004-211000-  
NORTH BIGHORN BASIN-  
INCLUDING THE CITIES OF BASIN, GREYBULL, LOVELL, POWELL,  
AND SHELL  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS THIS EVENING,  
THEN RAIN SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 40.  
NORTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 35 MPH. CHANCE OF  
RAIN 80 PERCENT.    
THURSDAY  
RAIN AND SNOW SHOWERS IN THE MORNING, THEN RAIN  
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
LITTLE OR NO SNOW ACCUMULATION. WINDY, COOLER WITH HIGHS AROUND  
50. NORTHWEST WINDS 20 TO 30 MPH WITH GUSTS UP TO 50 MPH. CHANCE  
OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY AND BREEZY. LOWS IN THE MID 30S.  
NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS UP TO 35 MPH, DIMINISHING  
TO AROUND 10 MPH AFTER MIDNIGHT.    
FRIDAY  
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTH WINDS AROUND  
10 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 40. EAST WINDS AROUND  
10 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE MID 70S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 40S.    
SUNDAY  
MOSTLY SUNNY. HIGHS AROUND 80.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 50.    
MEMORIAL DAY  
MOSTLY SUNNY. HIGHS IN THE MID 80S.    
MONDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
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.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF  
RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY IN THE MORNING, THEN MOSTLY SUNNY WITH  
A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS IN  
THE UPPER 70S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ006-211000-  
SOUTHEAST BIGHORN BASIN-  
INCLUDING THE CITIES OF TEN SLEEP AND WORLAND  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT.  
LOWS AROUND 40. NORTHWEST WINDS 10 TO 15 MPH. CHANCE OF RAIN  
30 PERCENT.    
THURSDAY  
SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 40S. NORTHWEST WINDS  
15 TO 25 MPH WITH GUSTS UP TO 40 MPH. CHANCE OF RAIN 90 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY 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  
30 MPH, BECOMING SOUTHWEST AROUND 10 MPH AFTER MIDNIGHT. CHANCE  
OF RAIN 60 PERCENT.    
FRIDAY  
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. HIGHS IN  
THE LOWER 60S. NORTH WINDS AROUND 10 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 40. EAST WINDS AROUND 10 MPH, BECOMING SOUTHEAST AFTER  
MIDNIGHT.    
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  
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 AROUND 80.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF  
RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 70S. CHANCE OF  
RAIN 30 PERCENT.  
 
 
 
WYZ005-211000-  
SOUTHWEST BIGHORN BASIN-  
INCLUDING THE CITY OF THERMOPOLIS  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF SHOWERS AFTER MIDNIGHT.  
LOWS IN THE MID 30S. WEST WINDS AROUND 10 MPH, BECOMING NORTHWEST  
WITH GUSTS UP TO 20 MPH AFTER MIDNIGHT. CHANCE OF RAIN  
30 PERCENT.    
THURSDAY  
RAIN SHOWERS. SNOW SHOWERS IN THE MORNING, THEN A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. LITTLE OR NO  
SNOW ACCUMULATION. BREEZY, COOLER WITH HIGHS IN THE MID 40S.  
NORTHWEST WINDS 15 TO 25 MPH WITH GUSTS UP TO 45 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 LOWER 30S. NORTHWEST 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 AROUND 60. NORTH WINDS AROUND  
10 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 40. EAST WINDS AROUND 10 MPH IN THE EVENING.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 40S.    
SUNDAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER  
70S.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 50.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE  
LOWER 80S.    
MONDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 50.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS IN THE UPPER 70S.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE UPPER 40S. CHANCE  
OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 70S. CHANCE OF  
RAIN 30 PERCENT.  
 
 
 
WYZ023-211000-  
STAR VALLEY-  
INCLUDING THE CITIES OF AFTON, ALPINE, STAR VALLEY RANCH,  
AND THAYNE  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
CLOUDY. RAIN SHOWERS LIKELY WITH A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS IN THE LOWER 30S. SOUTHWEST  
WINDS AROUND 10 MPH THIS EVENING. CHANCE OF RAIN 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 IN THE LOWER  
50S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 90 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 AROUND 70.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 40.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
HIGHS IN THE MID 70S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 40.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS AROUND  
80.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 40S.    
TUESDAY  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 70. CHANCE  
OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS  
AND THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER 30S. CHANCE  
OF RAIN 20 PERCENT.    
WEDNESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH  
A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
HIGHS IN THE MID 60S. CHANCE OF RAIN 40 PERCENT.  
 
 
 
WYZ025-211000-  
UPPER GREEN RIVER BASIN FOOTHILLS-  
INCLUDING THE CITY OF PINEDALE  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
CLOUDY. RAIN SHOWERS, SNOW SHOWERS LIKELY WITH A  
SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LITTLE OR NO SNOW  
ACCUMULATION. LOWS AROUND 30. WEST WINDS 10 TO 15 MPH THIS  
EVENING. CHANCE OF PRECIPITATION 60 PERCENT.    
THURSDAY  
SNOW AND RAIN SHOWERS. A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. SNOW ACCUMULATION UP TO 1 INCH. HIGHS AROUND 50.  
NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE  
AFTERNOON. CHANCE OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN  
THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. LOWS IN THE MID  
20S. NORTH WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE  
EVENING. CHANCE OF RAIN 30 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE MID 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 30.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE MID 60S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
AROUND 70. CHANCE OF RAIN 30 PERCENT.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 30S.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF  
RAIN 20 PERCENT.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S.    
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.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID  
30S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN  
THE MORNING, THEN A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. BREEZY WITH HIGHS IN THE MID 60S. CHANCE OF RAIN  
30 PERCENT.  
 
 
 
WYZ026-211000-  
UPPER GREEN RIVER BASIN-  
INCLUDING THE CITIES OF LA BARGE, BIG PINEY, AND FARSON  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS AFTER  
MIDNIGHT. LOWS IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH THIS  
EVENING. CHANCE OF PRECIPITATION 30 PERCENT.    
THURSDAY  
RAIN SHOWERS. SNOW SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS AND  
SNOW SHOWERS LIKELY IN THE AFTERNOON. LITTLE OR NO SNOW  
ACCUMULATION. HIGHS IN THE LOWER 50S. SOUTHWEST WINDS 10 TO  
15 MPH, BECOMING NORTHWEST IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH RAIN SHOWERS LIKELY WITH  
POSSIBLE SNOW SHOWERS AND THUNDERSTORMS IN THE EVENING, THEN  
PARTLY CLOUDY AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION.  
LOWS IN THE MID 20S. NORTHEAST WINDS 10 TO 15 MPH IN THE EVENING.  
CHANCE OF PRECIPITATION 60 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE MID 50S.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 30.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 30S.    
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 30S.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. 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.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID  
30S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. BREEZY  
WITH HIGHS IN THE UPPER 60S.  
 
 
 
WYZ010-211000-  
NORTHEAST JOHNSON COUNTY-  
INCLUDING THE CITY OF BUFFALO  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S. NORTHWEST WINDS  
10 TO 15 MPH WITH GUSTS UP TO 25 MPH.    
THURSDAY  
CLOUDY. RAIN SHOWERS LIKELY IN THE MORNING, THEN RAIN  
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
BREEZY, COOLER WITH HIGHS AROUND 50. NORTH WINDS 15 TO 25 MPH.  
GUSTS UP TO 40 MPH IN THE AFTERNOON. CHANCE OF RAIN 90 PERCENT.    
THURSDAY NIGHT  
CLOUDY. RAIN SHOWERS LIKELY, MAINLY IN THE  
EVENING. BREEZY WITH LOWS IN THE MID 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  
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS AROUND 60. NORTH WINDS AROUND 10 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S. NORTHWEST WINDS AROUND 10 MPH IN THE EVENING.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.    
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  
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.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS AROUND 50. CHANCE OF  
RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. BREEZY WITH HIGHS IN THE MID 70S. CHANCE OF RAIN  
30 PERCENT.  
 
 
 
WYZ011-211000-  
SOUTHEAST JOHNSON COUNTY-  
INCLUDING THE CITY OF KAYCEE  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS  
AROUND 10 MPH, BECOMING NORTH AFTER MIDNIGHT.    
THURSDAY  
CLOUDY. A CHANCE OF SHOWERS IN THE MORNING, THEN  
SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
BREEZY WITH HIGHS AROUND 50. NORTH WINDS 10 TO 15 MPH WITH GUSTS  
UP TO 25 MPH, INCREASING TO 20 TO 25 MPH WITH GUSTS UP TO 35 MPH  
IN THE AFTERNOON. CHANCE OF RAIN 80 PERCENT.    
THURSDAY NIGHT  
CLOUDY. RAIN SHOWERS LIKELY WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A CHANCE OF RAIN  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE MID 30S. NORTH  
WINDS 15 TO 20 MPH WITH GUSTS UP TO 35 MPH, BECOMING NORTHWEST  
AROUND 10 MPH WITH GUSTS UP TO 20 MPH AFTER MIDNIGHT. CHANCE OF  
RAIN 60 PERCENT.    
FRIDAY  
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS AROUND 60. NORTHWEST WINDS AROUND 10 MPH IN THE  
MORNING.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S. SOUTHWEST WINDS AROUND 10 MPH AFTER MIDNIGHT.    
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  
SUNNY. HIGHS IN THE MID 80S.    
MONDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 50.    
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.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE UPPER 40S. CHANCE  
OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 70S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ027-211000-  
SOUTH LINCOLN COUNTY-  
INCLUDING THE CITIES OF KEMMERER AND COKEVILLE  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS AFTER  
MIDNIGHT. LOWS IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH. CHANCE  
OF PRECIPITATION 30 PERCENT.    
THURSDAY  
RAIN SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS AND  
SNOW SHOWERS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. BREEZY WITH HIGHS  
IN THE LOWER 50S. SOUTHWEST WINDS 15 TO 20 MPH, BECOMING  
NORTHWEST IN THE AFTERNOON. CHANCE OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. BREEZY WITH LOWS  
IN THE UPPER 20S. NORTHWEST WINDS 15 TO 20 MPH WITH GUSTS UP TO  
30 MPH, BECOMING SOUTHEAST AROUND 10 MPH AFTER MIDNIGHT. CHANCE  
OF RAIN 30 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS AROUND 60. WEST WINDS AROUND  
10 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 30.    
SATURDAY  
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70.    
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. A SLIGHT CHANCE OF. HIGHS IN THE  
MID 70S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 40.    
TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS AROUND 70.  
CHANCE OF RAIN 20 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S.    
WEDNESDAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE MID 60S.  
CHANCE OF RAIN 20 PERCENT.  
 
 
 
WYZ016-211000-  
UPPER WIND RIVER BASIN-  
INCLUDING THE CITY OF DUBOIS  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. SNOW SHOWERS LIKELY WITH A CHANCE OF  
RAIN SHOWERS AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 1 INCH. LOWS  
IN THE MID 30S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH  
THIS EVENING. CHANCE OF PRECIPITATION 60 PERCENT.    
THURSDAY  
RAIN AND SNOW SHOWERS. A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. SNOW ACCUMULATION UP TO 3 INCHES. HIGHS IN THE MID  
40S. NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE  
OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS IN  
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE UPPER  
20S. SOUTHEAST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE  
EVENING. CHANCE OF RAIN 30 PERCENT.    
FRIDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS IN THE MID 50S. SOUTHWEST WINDS AROUND 10 MPH WITH  
GUSTS UP TO 20 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP TO  
20 MPH, BECOMING WEST AFTER MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 60S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 40.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. BREEZY WITH HIGHS AROUND 70. CHANCE OF RAIN  
30 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 40S.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE  
LOWER 70S.    
MONDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE LOWER 40S.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
AROUND 70. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING.  
PARTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN THE LOWER 40S.  
CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF  
RAIN 30 PERCENT.  
 
 
 
WYZ001-211000-  
YELLOWSTONE NATIONAL PARK-  
INCLUDING THE CITIES OF LAKE, MAMMOTH, AND OLD FAITHFUL  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
SNOW SHOWERS. RAIN SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS THIS EVENING, THEN RAIN SHOWERS AFTER MIDNIGHT.  
SNOW ACCUMULATION AROUND 5 INCHES. LOWS IN THE UPPER 20S. WEST  
WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH THIS EVENING. CHANCE  
OF PRECIPITATION 90 PERCENT.    
THURSDAY  
CLOUDY IN THE MORNING, THEN BECOMING PARTLY CLOUDY. A  
SLIGHT CHANCE OF THUNDERSTORMS. SNOW SHOWERS, MAINLY IN THE  
MORNING. STORM TOTAL SNOW ACCUMULATION OF 2 TO 4 INCHES. HIGHS IN  
THE LOWER 40S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH.  
CHANCE OF SNOW 80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 20S. NORTH  
WINDS AROUND 10 MPH WITH GUSTS UP TO 25 MPH IN THE EVENING.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE LOWER 50S. WEST WINDS  
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 20S. SOUTHWEST  
WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE EVENING.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.    
SATURDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID 60S.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S.    
MEMORIAL DAY  
MOSTLY SUNNY. 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 WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF RAIN 40 PERCENT.   
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT  
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS IN THE MID 30S.  
CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN  
THE MORNING, THEN A CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ029-211000-  
FLAMING GORGE-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. LOWS IN THE UPPER 30S. WEST WINDS 10 TO  
15 MPH THIS EVENING.    
THURSDAY  
SHOWERS LIKELY WITH A CHANCE OF SNOW SHOWERS IN THE  
MORNING, THEN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. BREEZY WITH HIGHS IN  
THE LOWER 50S. WEST WINDS 15 TO 20 MPH. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH RAIN SHOWERS, SNOW SHOWERS  
LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN  
PARTLY CLOUDY AFTER MIDNIGHT. LITTLE OR NO SNOW ACCUMULATION.  
BREEZY WITH LOWS IN THE LOWER 30S. NORTH WINDS 15 TO 20 MPH WITH  
GUSTS UP TO 30 MPH, BECOMING EAST AROUND 10 MPH AFTER MIDNIGHT.  
CHANCE OF PRECIPITATION 60 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE MID 50S. WEST WINDS AROUND  
10 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S. SOUTHWEST WINDS AROUND 10 MPH IN THE EVENING.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 40S.    
SUNDAY  
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. HIGHS IN THE LOWER 70S. CHANCE OF RAIN 30 PERCENT.   
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 40S.    
MEMORIAL DAY  
MOSTLY SUNNY. HIGHS IN THE MID 70S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 40S.    
TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER  
60S. CHANCE OF RAIN 20 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY AND BREEZY. LOWS IN THE MID 40S.    
WEDNESDAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH HIGHS  
IN THE UPPER 60S.  
 
 
 
WYZ022-211000-  
CASPER MOUNTAIN-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST WINDS  
AROUND 10 MPH, BECOMING SOUTH AFTER MIDNIGHT.    
THURSDAY  
MOSTLY CLOUDY. RAIN SHOWERS LIKELY, A CHANCE OF  
THUNDERSTORMS AND SNOW SHOWERS LIKELY IN THE AFTERNOON. NO SNOW  
ACCUMULATION. HIGHS IN THE UPPER 40S. SOUTH WINDS AROUND 10 MPH,  
BECOMING WEST WITH GUSTS UP TO 20 MPH IN THE AFTERNOON. CHANCE OF  
PRECIPITATION 70 PERCENT.    
THURSDAY NIGHT  
SNOW SHOWERS. RAIN SHOWERS WITH A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE EVENING, THEN RAIN SHOWERS LIKELY AFTER  
MIDNIGHT. SNOW ACCUMULATION UP TO 4 INCHES. LOWS IN THE UPPER  
20S. NORTHWEST WINDS AROUND 10 MPH. 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. WEST WINDS AROUND 10 MPH. CHANCE OF PRECIPITATION  
20 PERCENT.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST  
WINDS AROUND 10 MPH.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 40.    
SUNDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 40S.    
MEMORIAL DAY  
MOSTLY SUNNY. HIGHS IN THE LOWER 70S.    
MONDAY NIGHT  
PARTLY CLOUDY 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 UPPER 60S. CHANCE OF RAIN  
30 PERCENT.    
TUESDAY NIGHT  
MOSTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID 40S.  
CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ002-211000-  
ABSAROKA MOUNTAINS-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. RAIN AND SNOW SHOWERS LIKELY THIS  
EVENING, THEN SNOW SHOWERS AFTER MIDNIGHT. SNOW MAY BE HEAVY AT  
TIMES AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 7 INCHES. LOWS IN  
THE UPPER 20S. WEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH  
THIS EVENING. CHANCE OF PRECIPITATION 80 PERCENT.    
THURSDAY  
A SLIGHT CHANCE OF THUNDERSTORMS. SNOW SHOWERS,  
MAINLY IN THE MORNING. SNOW MAY BE HEAVY AT TIMES IN THE MORNING.  
STORM TOTAL SNOW ACCUMULATION OF 4 TO 6 INCHES. BREEZY WITH HIGHS  
IN THE MID 30S. NORTHEAST WINDS 15 TO 20 MPH WITH GUSTS UP TO  
35 MPH. CHANCE OF SNOW 80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY IN THE EVENING, THEN BECOMING  
PARTLY CLOUDY. COLD WITH LOWS 14 TO 24. NORTH WINDS 10 TO 15 MPH  
WITH GUSTS UP TO 30 MPH, BECOMING WEST AFTER MIDNIGHT.    
FRIDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS IN THE MID 40S. WEST WINDS AROUND 10 MPH WITH GUSTS  
UP TO 20 MPH.    
FRIDAY 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.    
SATURDAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 50S.    
SATURDAY NIGHT  
MOSTLY CLEAR AND BREEZY. LOWS IN THE MID 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 50S. CHANCE OF RAIN  
30 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 30S.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. BREEZY WITH  
HIGHS IN THE LOWER 60S.    
MONDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
AROUND 40.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. BREEZY  
WITH HIGHS IN THE UPPER 50S. CHANCE OF RAIN 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT  
CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER  
30S. CHANCE OF PRECIPITATION 40 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW  
SHOWERS. A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE  
MID 50S. CHANCE OF PRECIPITATION 40 PERCENT.  
 
 
 
WYZ007-211000-  
OWL CREEK AND BRIDGER MOUNTAINS-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AFTER  
MIDNIGHT. LOWS IN THE MID 30S. WEST WINDS 10 TO 15 MPH, BECOMING  
NORTHEAST AFTER MIDNIGHT. CHANCE OF RAIN 30 PERCENT.    
THURSDAY  
RAIN AND SNOW SHOWERS. A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. SNOW ACCUMULATION UP TO 6 INCHES.  
WINDY WITH HIGHS IN THE LOWER 40S. NORTH WINDS 20 TO 30 MPH WITH  
GUSTS UP TO 45 MPH. CHANCE OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH SNOW SHOWERS LIKELY WITH A  
CHANCE OF RAIN SHOWERS IN THE EVENING, THEN PARTLY CLOUDY AFTER  
MIDNIGHT. NEW SNOW ACCUMULATION UP TO 2 INCHES. BREEZY WITH LOWS  
IN THE LOWER 30S. NORTH WINDS 20 TO 25 MPH WITH GUSTS UP TO  
35 MPH, BECOMING NORTHWEST AROUND 10 MPH AFTER MIDNIGHT. CHANCE  
OF PRECIPITATION 60 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE MID 50S. NORTHWEST WINDS  
AROUND 10 MPH, BECOMING NORTH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S. SOUTHEAST WINDS AROUND 10 MPH, BECOMING  
SOUTHWEST AFTER MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE MID 60S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 40S.    
SUNDAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE LOWER  
70S.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 50.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE  
MID 70S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 50.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
BREEZY WITH HIGHS IN THE LOWER 70S. CHANCE OF RAIN 20 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE UPPER 40S. CHANCE  
OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS IN THE  
MORNING, THEN MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER  
60S. CHANCE OF RAIN 40 PERCENT.  
 
 
 
WYZ008-211000-  
BIGHORN MOUNTAINS WEST-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS AFTER  
MIDNIGHT. LOWS IN THE LOWER 30S. WEST WINDS AROUND 10 MPH WITH  
GUSTS UP TO 25 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT. CHANCE OF  
PRECIPITATION 30 PERCENT.    
THURSDAY  
SNOW SHOWERS. A CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. SNOW ACCUMULATION UP TO 9 INCHES. HIGHS AROUND  
40. SOUTH WINDS AROUND 10 MPH, BECOMING NORTHWEST IN THE  
AFTERNOON. GUSTS UP TO 30 MPH. CHANCE OF PRECIPITATION  
90 PERCENT.    
THURSDAY NIGHT  
CLOUDY. SNOW AND RAIN SHOWERS LIKELY IN THE  
EVENING. NEW SNOW ACCUMULATION UP TO 3 INCHES. LOWS IN THE UPPER  
20S. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH IN THE  
EVENING. CHANCE OF PRECIPITATION 60 PERCENT.    
FRIDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER  
40S. WEST WINDS AROUND 10 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 30S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP TO  
20 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 50S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 40S.    
SUNDAY  
MOSTLY SUNNY. HIGHS IN THE UPPER 60S.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 40S.    
MEMORIAL DAY  
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 70.    
MONDAY NIGHT  
PARTLY CLOUDY AND BREEZY. LOWS IN THE UPPER 40S.    
TUESDAY  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN  
THE UPPER 60S. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT  
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE  
MID 40S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS. A  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S.  
CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ009-211000-  
BIGHORN MOUNTAINS SOUTHEAST-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY THIS EVENING, THEN BECOMING PARTLY  
CLOUDY. LOWS IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH WITH GUSTS  
UP TO 25 MPH, BECOMING NORTH AFTER MIDNIGHT.    
THURSDAY  
A CHANCE OF SNOW AND RAIN SHOWERS IN THE MORNING,  
THEN SNOW SHOWERS, RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. SNOW ACCUMULATION UP TO 8 INCHES. HIGHS AROUND 40.  
EAST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH, BECOMING NORTH  
WITH GUSTS UP TO 30 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY NIGHT  
CLOUDY. SNOW AND RAIN SHOWERS LIKELY IN THE  
EVENING, THEN A CHANCE OF SNOW SHOWERS AFTER MIDNIGHT. STORM  
TOTAL SNOW ACCUMULATION OF 1 TO 3 INCHES POSSIBLE. LOWS IN THE  
UPPER 20S. NORTHWEST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN  
THE EVENING. CHANCE OF PRECIPITATION 70 PERCENT.    
FRIDAY  
MOSTLY CLOUDY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. A CHANCE OF. HIGHS IN THE UPPER 40S. NORTHWEST WINDS  
AROUND 10 MPH WITH GUSTS UP TO 20 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 30S. WEST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH.   
SATURDAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE UPPER  
50S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 40S.    
SUNDAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE UPPER 60S.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 40S.    
MEMORIAL DAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 70S.    
MONDAY NIGHT  
MOSTLY CLEAR IN THE EVENING, THEN BECOMING PARTLY  
CLOUDY. BREEZY WITH LOWS IN THE UPPER 40S.    
TUESDAY  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER  
60S. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT  
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. BREEZY WITH LOWS IN THE  
MID 40S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE  
MORNING, THEN RAIN SHOWERS LIKELY WITH A CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF RAIN  
60 PERCENT.  
 
 
 
WYZ012-211000-  
TETON AND GROS VENTRE MOUNTAINS-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS THIS  
EVENING, THEN SNOW SHOWERS WITH POSSIBLE RAIN SHOWERS AND  
THUNDERSTORMS LIKELY AFTER MIDNIGHT. SNOW ACCUMULATION UP TO  
4 INCHES. LOWS IN THE UPPER 20S. SOUTHWEST WINDS 10 TO 15 MPH.  
GUSTS UP TO 30 MPH THIS EVENING. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY  
SNOW SHOWERS, RAIN SHOWERS WITH A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN SNOW SHOWERS LIKELY, A CHANCE  
OF THUNDERSTORMS AND RAIN SHOWERS IN THE AFTERNOON. STORM TOTAL  
SNOW ACCUMULATION OF 2 TO 4 INCHES. HIGHS AROUND 40. NORTH WINDS  
10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING.  
LOWS IN THE LOWER 20S. NORTHEAST WINDS 10 TO 15 MPH.    
FRIDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS IN THE UPPER 40S. WEST WINDS AROUND 10 MPH WITH  
GUSTS UP TO 20 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 20S. SOUTHWEST WINDS AROUND 10 MPH WITH GUSTS UP TO  
20 MPH, BECOMING SOUTHEAST AFTER MIDNIGHT.    
SATURDAY  
MOSTLY SUNNY. HIGHS IN THE MID 50S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE MID 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
IN THE LOWER 60S. CHANCE OF RAIN 30 PERCENT.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 30S.    
MEMORIAL DAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY  
WITH A SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE MID 60S. CHANCE OF RAIN 20 PERCENT.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
AROUND 60. CHANCE OF RAIN 40 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE MID  
30S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE UPPER 50S. CHANCE OF  
PRECIPITATION 40 PERCENT.  
 
 
 
WYZ014-211000-  
WIND RIVER MOUNTAINS WEST-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. SNOW SHOWERS LIKELY AFTER MIDNIGHT.  
SNOW ACCUMULATION UP TO 3 INCHES. LOWS IN THE UPPER 20S.  
SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 25 MPH. CHANCE OF  
SNOW 60 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. STORM TOTAL SNOW ACCUMULATION OF  
3 TO 5 INCHES. HIGHS IN THE UPPER 30S. SOUTHWEST WINDS AROUND  
10 MPH WITH GUSTS UP TO 20 MPH, BECOMING NORTH WITH GUSTS UP TO  
30 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION 90 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN  
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. LOWS IN THE LOWER  
20S. NORTHEAST WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN THE  
EVENING. CHANCE OF SNOW 30 PERCENT.    
FRIDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF. HIGHS IN THE MID  
40S. WEST WINDS AROUND 10 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 20S. WEST WINDS AROUND 10 MPH WITH GUSTS UP TO  
20 MPH IN THE EVENING.    
SATURDAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE MID 50S.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE LOWER 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
IN THE UPPER 50S. CHANCE OF RAIN 40 PERCENT.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE MID 30S.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. HIGHS IN THE LOWER 60S. CHANCE OF  
RAIN 20 PERCENT.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE UPPER 30S.    
TUESDAY  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER  
50S. CHANCE OF RAIN 30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT  
CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE MID  
30S. CHANCE OF PRECIPITATION 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS,  
THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. HIGHS IN THE MID  
50S. CHANCE OF PRECIPITATION 30 PERCENT.  
 
 
 
WYZ015-211000-  
WIND RIVER MOUNTAINS EAST-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. SNOW SHOWERS LIKELY AFTER MIDNIGHT.  
SNOW ACCUMULATION UP TO 3 INCHES. LOWS IN THE UPPER 20S.  
SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH. CHANCE OF  
SNOW 60 PERCENT.    
THURSDAY  
SNOW SHOWERS WITH POSSIBLE RAIN SHOWERS AND  
THUNDERSTORMS IN THE MORNING, THEN SNOW SHOWERS WITH A CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. SNOW MAY BE HEAVY AT TIMES IN THE  
AFTERNOON. STORM TOTAL SNOW ACCUMULATION OF 4 TO 8 INCHES. HIGHS  
IN THE MID 30S. WEST WINDS 10 TO 15 MPH, BECOMING NORTHEAST IN  
THE AFTERNOON. GUSTS UP TO 30 MPH. CHANCE OF PRECIPITATION  
90 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS IN  
THE EVENING, THEN PARTLY CLOUDY AFTER MIDNIGHT. COLD WITH LOWS  
13 TO 25. NORTH WINDS 10 TO 15 MPH WITH GUSTS UP TO 30 MPH,  
BECOMING WEST AFTER MIDNIGHT. CHANCE OF SNOW 30 PERCENT.    
FRIDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. A CHANCE OF. HIGHS IN THE LOWER 40S. WEST WINDS AROUND  
10 MPH.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE UPPER 20S. SOUTHWEST WINDS 10 TO 15 MPH.    
SATURDAY  
MOSTLY SUNNY AND BREEZY. HIGHS IN THE LOWER 50S.    
SATURDAY NIGHT  
MOSTLY CLEAR AND BREEZY. LOWS IN THE MID 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. BREEZY WITH HIGHS IN THE UPPER 50S. CHANCE OF RAIN  
40 PERCENT.    
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. 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.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT  
CHANCE OF RAIN AND SNOW SHOWERS AFTER MIDNIGHT. LOWS IN THE UPPER  
30S. CHANCE OF PRECIPITATION 30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN AND SNOW  
SHOWERS IN THE MORNING, THEN A CHANCE OF RAIN SHOWERS,  
THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. BREEZY WITH  
HIGHS IN THE MID 50S. CHANCE OF PRECIPITATION 30 PERCENT.  
 
 
 
WYZ019-211000-  
GREEN MOUNTAINS AND RATTLESNAKE RANGE-  
INCLUDING THE CITY OF JEFFREY CITY  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
PARTLY CLOUDY THIS EVENING, THEN BECOMING MOSTLY  
CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH WITH  
GUSTS UP TO 25 MPH, BECOMING SOUTH AFTER MIDNIGHT.    
THURSDAY  
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. SNOW ACCUMULATION UP TO 1 INCH.  
BREEZY WITH HIGHS IN THE MID 40S. SOUTHWEST WINDS AROUND 10 MPH  
WITH GUSTS UP TO 20 MPH, BECOMING NORTHWEST 15 TO 20 MPH WITH  
GUSTS UP TO 30 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY. SNOW AND RAIN SHOWERS IN THE  
EVENING, THEN SNOW SHOWERS LIKELY WITH A CHANCE OF RAIN SHOWERS  
AFTER MIDNIGHT. SNOW ACCUMULATION UP TO 2 INCHES. LOWS IN THE  
UPPER 20S. NORTH WINDS 10 TO 15 MPH. GUSTS UP TO 35 MPH IN THE  
EVENING. CHANCE OF PRECIPITATION 80 PERCENT.    
FRIDAY  
PARTLY CLOUDY. HIGHS IN THE LOWER 50S. WEST WINDS  
AROUND 10 MPH WITH GUSTS UP TO 20 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY. 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 IN THE LOWER 70S.    
SUNDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE LOWER 40S.    
MEMORIAL DAY  
MOSTLY SUNNY. HIGHS IN THE MID 70S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE MID 40S.    
TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON. BREEZY WITH HIGHS IN THE LOWER  
70S. CHANCE OF RAIN 20 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF SHOWERS WITH A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING, THEN A SLIGHT CHANCE OF  
SHOWERS AFTER MIDNIGHT. LOWS IN THE LOWER 40S. CHANCE OF RAIN  
30 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A  
SLIGHT CHANCE OF SHOWERS. A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS IN THE UPPER 60S. CHANCE OF RAIN 20 PERCENT.  
 
 
 
WYZ024-211000-  
SALT RIVER AND WYOMING RANGES-  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
MOSTLY CLOUDY. SNOW SHOWERS LIKELY WITH POSSIBLE RAIN  
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. SNOW ACCUMULATION UP TO  
1 INCH. LOWS IN THE LOWER 30S. WEST WINDS 10 TO 15 MPH. GUSTS UP  
TO 30 MPH THIS EVENING. CHANCE OF PRECIPITATION 60 PERCENT.    
THURSDAY  
SNOW AND RAIN SHOWERS. A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING, THEN A CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. SNOW ACCUMULATION UP TO 4 INCHES. HIGHS IN THE MID  
40S. WEST WINDS 10 TO 15 MPH, BECOMING NORTHWEST IN THE  
AFTERNOON. GUSTS UP TO 30 MPH. CHANCE OF PRECIPITATION  
80 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY WITH A CHANCE OF SNOW SHOWERS  
WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING, THEN MOSTLY  
CLEAR AFTER MIDNIGHT. LOWS IN THE MID 20S. NORTH WINDS 10 TO  
15 MPH WITH GUSTS UP TO 30 MPH IN THE EVENING. CHANCE OF SNOW  
30 PERCENT.    
FRIDAY  
MOSTLY SUNNY IN THE MORNING, THEN BECOMING PARTLY  
CLOUDY. HIGHS IN THE LOWER 50S. WEST WINDS AROUND 10 MPH WITH  
GUSTS UP TO 20 MPH IN THE AFTERNOON.    
FRIDAY NIGHT  
PARTLY CLOUDY IN THE EVENING, THEN CLEARING. LOWS  
IN THE LOWER 30S. WEST WINDS AROUND 10 MPH WITH GUSTS UP TO  
20 MPH IN THE EVENING.    
SATURDAY  
MOSTLY SUNNY AND BREEZY. HIGHS AROUND 60.    
SATURDAY NIGHT  
MOSTLY CLEAR. LOWS IN THE UPPER 30S.    
SUNDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
SLIGHT CHANCE OF RAIN SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.  
HIGHS IN THE MID 60S. CHANCE OF RAIN 20 PERCENT.    
SUNDAY NIGHT  
MOSTLY CLEAR. LOWS AROUND 40.    
MEMORIAL DAY  
MOSTLY SUNNY. A SLIGHT CHANCE OF. HIGHS IN THE  
UPPER 60S.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS IN THE LOWER 40S.    
TUESDAY  
MOSTLY SUNNY IN THE MORNING, THEN PARTLY CLOUDY WITH A  
CHANCE OF RAIN SHOWERS WITH A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. BREEZY WITH HIGHS IN THE LOWER 60S. CHANCE OF RAIN  
30 PERCENT.    
TUESDAY NIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN SHOWERS WITH A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. LOWS IN THE UPPER  
30S. CHANCE OF RAIN 30 PERCENT.    
WEDNESDAY  
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 50S. CHANCE OF RAIN 30 PERCENT.  
 
 
 
WYZ030-211000-  
EAST SWEETWATER COUNTY-  
INCLUDING THE CITY OF WAMSUTTER  
618 PM MDT WED MAY 20 2026  
   
TONIGHT  
PARTLY CLOUDY THIS EVENING, THEN BECOMING MOSTLY  
CLOUDY. LOWS IN THE LOWER 30S. SOUTHWEST WINDS AROUND 10 MPH.    
THURSDAY  
CLOUDY. A CHANCE OF RAIN AND SNOW SHOWERS IN THE  
MORNING, THEN RAIN SHOWERS WITH A CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. LITTLE OR NO SNOW ACCUMULATION. HIGHS AROUND 50. WEST  
WINDS 10 TO 15 MPH. GUSTS UP TO 30 MPH IN THE AFTERNOON. CHANCE  
OF PRECIPITATION 80 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY. RAIN SHOWERS, SNOW SHOWERS  
LIKELY WITH A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING. SNOW  
ACCUMULATION UP TO 1 INCH. LOWS AROUND 30. NORTH WINDS 10 TO  
15 MPH. GUSTS UP TO 30 MPH IN THE EVENING. CHANCE OF  
PRECIPITATION 60 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 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. A SLIGHT CHANCE OF. BREEZY WITH HIGHS  
AROUND 70.    
TUESDAY NIGHT  
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. BREEZY WITH LOWS AROUND 40. CHANCE  
OF RAIN 20 PERCENT.    
WEDNESDAY  
PARTLY CLOUDY IN THE MORNING, THEN CLEARING. A  
SLIGHT CHANCE OF. BREEZY WITH HIGHS AROUND 70.  
 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.
The Nexlab WY Page
Main Text Page