273  
FPUS55 KPIH 211847  
ZFPPIH  
 
ZONE FORECAST PRODUCT FOR IDAHO  
NATIONAL WEATHER SERVICE POCATELLO ID  
1247 PM MDT TUE APR 21 2026  
 
THIS FORECAST MAY NOT BE REPRESENTATIVE OF THE EXACT LOCATION YOU  
ARE INTERESTED IN. FOR A SITE-SPECIFIC FORECAST, PLEASE VISIT  
WEATHER.GOV/POCATELLO AND CLICK THE MAP ON THE MAIN PAGE.  
 
IDZ072-221000-  
SAWTOOTH/STANLEY BASIN-  
INCLUDING STANLEY  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT  
TONIGHT TO 6 AM MDT THURSDAY ABOVE 6500 FEET ELEVATION...  
   
TONIGHT  
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE  
EVENING...THEN A CHANCE OF SNOW SHOWERS, A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. COLDER. SNOW  
ACCUMULATION UP TO 2 INCHES. LOWS 30 TO 40.    
WEDNESDAY  
SNOW, COLDER. SNOW ACCUMULATION OF 4 TO 8 INCHES.  
HIGHS 34 TO 44.    
WEDNESDAY NIGHT  
SNOW, COLDER. SNOW ACCUMULATION OF 2 TO  
6 INCHES. LOWS 24 TO 34.    
THURSDAY  
SNOW LIKELY. HIGHS 33 TO 43.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.  
LOWS 17 TO 27.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 32 TO 42.    
FRIDAY NIGHT AND SATURDAY  
MOSTLY CLOUDY. A CHANCE OF SNOW.  
LOWS 14 TO 24. HIGHS 37 TO 47.    
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 18 TO 27.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 38 TO 48.    
SUNDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
19 TO 29.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 41 TO 51.    
MONDAY NIGHT AND TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SNOW. LOWS 20 TO 30. HIGHS 46 TO 56.  
 
 
 
IDZ073-221000-  
SUN VALLEY REGION-  
INCLUDING KETCHUM, SUN VALLEY, AND GALENA  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT  
TONIGHT TO 6 AM MDT THURSDAY ABOVE 6500 FEET ELEVATION...  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN AND SNOW IN THE  
EVENING...THEN A CHANCE OF SNOW SHOWERS, A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. COLDER. SNOW  
ACCUMULATION UP TO 2 INCHES. LOWS 28 TO 35.    
WEDNESDAY...SNOW IN THE MORNING  
THEN SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. COLDER. SNOW  
ACCUMULATION OF 2 TO 6 INCHES. HIGHS 37 TO 47.    
WEDNESDAY NIGHT  
SNOW, COLDER. SNOW ACCUMULATION OF 1 TO  
3 INCHES. LOWS 23 TO 30.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 40 TO 50.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.  
LOWS 19 TO 26.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 37 TO 47.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 18 TO  
25.    
SATURDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 41 TO 51.    
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 23 TO 30.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 42 TO 52.    
SUNDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
23 TO 31.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 44 TO 54.    
MONDAY NIGHT AND TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SNOW. LOWS 24 TO 32. HIGHS 48 TO 58.  
 
 
 
IDZ052-053-221000-  
ARCO/MUD LAKE DESERT-UPPER SNAKE RIVER PLAIN-  
INCLUDING MUD LAKE, INL, CRATERS OF THE MOON NM,  
IDAHO FALLS, REXBURG, AND ST. ANTHONY  
1247 PM MDT TUE APR 21 2026  
 
...WIND ADVISORY IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT MDT  
WEDNESDAY NIGHT...  
...WIND ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY TO  
MIDNIGHT MDT WEDNESDAY NIGHT...  
   
TONIGHT  
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.  
BREEZY. LOWS 35 TO 42. SOUTH WINDS 15 TO 25 MPH.    
WEDNESDAY...RAIN LIKELY IN THE MORNING  
THEN RAIN SHOWERS  
LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
VERY WINDY. MUCH COOLER. HIGHS 46 TO 55. SOUTHWEST WINDS 25 TO  
35 MPH. CHANCE OF PRECIPITATION 70 PERCENT.    
WEDNESDAY NIGHT...RAIN LIKELY IN THE EVENING  
THEN SNOW WITH  
RAIN LIKELY AFTER MIDNIGHT. VERY WINDY. SNOW ACCUMULATION UP TO  
1 INCH. LOWS 30 TO 37. SOUTHWEST WINDS 25 TO 35 MPH.    
THURSDAY  
SNOW AND RAIN LIKELY. BREEZY. HIGHS 46 TO 56.  
SOUTHWEST WINDS 15 TO 25 MPH. CHANCE OF PRECIPITATION 70 PERCENT.   
THURSDAY NIGHT  
A CHANCE OF SNOW AND RAIN LIKELY. ACCUMULATIONS  
POSSIBLE. LOWS 24 TO 31. WEST WINDS 10 TO 15 MPH. CHANCE OF  
PRECIPITATION 70 PERCENT.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 41 TO 50.    
FRIDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW.  
LOWS 22 TO 29.    
SATURDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 46 TO 53.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 26 TO 33.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, A SLIGHT  
CHANCE OF THUNDERSTORMS AND SNOW. HIGHS 50 TO 58.    
SUNDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS  
28 TO 35.    
MONDAY  
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 50 TO  
59.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS 29 TO 36.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS 55 TO 62.  
 
 
 
IDZ051-221000-  
SHOSHONE/LAVA BEDS-  
INCLUDING SHOSHONE, RICHFIELD, AND CAREY  
1247 PM MDT TUE APR 21 2026  
 
...WIND ADVISORY IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT MDT  
WEDNESDAY NIGHT...  
   
TONIGHT  
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE  
EVENING...THEN A CHANCE OF RAIN AFTER MIDNIGHT. BREEZY. LOWS  
34 TO 41. SOUTH WINDS 15 TO 25 MPH...SHIFTING TO SOUTHWEST AFTER  
MIDNIGHT.    
WEDNESDAY...RAIN IN THE MORNING  
THEN RAIN SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. VERY WINDY. MUCH  
COOLER. HIGHS 46 TO 53. SOUTHWEST WINDS 25 TO 35 MPH.    
WEDNESDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW.  
WINDY. LITTLE OR NO SNOW ACCUMULATION. LOWS 30 TO 37. WEST WINDS  
20 TO 30 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND A SLIGHT  
CHANCE OF RAIN. WINDY. HIGHS 49 TO 56. WEST WINDS 20 TO 30 MPH.  
CHANCE OF PRECIPITATION 50 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. BREEZY. LOWS 25 TO 32. WEST WINDS 15 TO 25 MPH. CHANCE OF  
PRECIPITATION 20 PERCENT.    
FRIDAY  
MOSTLY SUNNY WITH A CHANCE OF SNOW AND A SLIGHT CHANCE  
OF RAIN. HIGHS 48 TO 55.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 24 TO 31.    
SATURDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS  
51 TO 58.    
SATURDAY NIGHT  
PARTLY CLOUDY. LOWS AROUND 31.    
SUNDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 53 TO  
60.    
SUNDAY NIGHT  
PARTLY CLOUDY. LOWS 29 TO 36.    
MONDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 54 TO  
61.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS 30 TO 37.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 58 TO  
65.  
 
 
 
IDZ056-057-221000-  
SOUTHERN HILLS/ALBION MOUNTAINS-RAFT RIVER REGION-  
INCLUDING ALBION, ALMO, MALTA, ROCKLAND,  
AND HOLBROOK  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT...PARTLY CLOUDY IN THE EVENING  
THEN MOSTLY CLOUDY WITH  
A CHANCE OF RAIN AFTER MIDNIGHT. WINDY, COLDER. LOWS 36 TO 43.  
SOUTH WINDS 20 TO 30 MPH.    
WEDNESDAY...RAIN AND SNOW LIKELY IN THE MORNING  
THEN RAIN  
SHOWERS, SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WINDY. MUCH COOLER. SNOW ACCUMULATION OF 3 TO  
4 INCHES. SNOW LEVEL 6100 FEET. HIGHS 46 TO 54. WEST WINDS 20 TO  
30 MPH.    
WEDNESDAY NIGHT  
RAIN AND SNOW. BREEZY. SNOW ACCUMULATION OF  
2 TO 4 INCHES. SNOW LEVEL 5900 FEET. LOWS 31 TO 38. WEST WINDS  
15 TO 25 MPH.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND RAIN. WINDY.  
HIGHS 48 TO 55. WEST WINDS 20 TO 30 MPH.    
THURSDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. BREEZY. LOWS 26 TO 33. WEST WINDS 15 TO 25 MPH.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND RAIN. HIGHS  
48 TO 56.    
FRIDAY NIGHT  
MOSTLY CLEAR. LOWS 25 TO 33.    
SATURDAY  
MOSTLY SUNNY WITH A CHANCE OF SNOW SHOWERS, A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS 52 TO 60.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 31 TO 38.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 52 TO 59.    
SUNDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 31 TO 39.    
MONDAY  
MOSTLY SUNNY WITH A CHANCE OF RAIN AND A SLIGHT CHANCE  
OF SNOW. HIGHS 54 TO 61.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS  
32 TO 39.    
TUESDAY  
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, A SLIGHT  
CHANCE OF THUNDERSTORMS AND SNOW. HIGHS 58 TO 65.  
 
 
 
IDZ058-059-221000-  
MARSH AND ARBON HIGHLANDS-FRANKLIN/EASTERN ONEIDA REGION-  
INCLUDING INKOM, MCCAMMON, DOWNEY,  
LAVA HOT SPRINGS, MALAD, PRESTON, AND THATCHER  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT...MOSTLY CLOUDY IN THE EVENING  
THEN PARTLY CLOUDY WITH  
A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. COLDER. LOWS 36 TO 43.    
WEDNESDAY  
RAIN SHOWERS, SNOW SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS, SNOW SHOWERS  
AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. BREEZY, COOLER.  
SNOW ACCUMULATION OF 1 TO 3 INCHES. HIGHS 44 TO 54.    
WEDNESDAY NIGHT  
RAIN AND SNOW. COLDER. SNOW ACCUMULATION OF  
2 TO 3 INCHES. SNOW LEVEL 5900 FEET. LOWS 30 TO 37.    
THURSDAY  
SNOW WITH RAIN LIKELY. HIGHS 43 TO 53.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW AND RAIN.  
LOWS 25 TO 32.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 42 TO 52.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
23 TO 32.    
SATURDAY  
MOSTLY SUNNY WITH A CHANCE OF SNOW SHOWERS, A SLIGHT  
CHANCE OF SHOWERS AND THUNDERSTORMS. HIGHS 49 TO 59.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 29 TO 37.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 48 TO 58.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 29 TO 37.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, A SLIGHT  
CHANCE OF THUNDERSTORMS AND SNOW. HIGHS 49 TO 58.    
MONDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS  
30 TO 38.    
TUESDAY  
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 53 TO 63.  
 
 
 
IDZ054-221000-  
LOWER SNAKE RIVER PLAIN-  
INCLUDING POCATELLO, BLACKFOOT, AMERICAN FALLS,  
SHELLEY, AND FORT HALL  
1247 PM MDT TUE APR 21 2026  
 
...WIND ADVISORY IN EFFECT FROM NOON WEDNESDAY TO MIDNIGHT MDT  
WEDNESDAY NIGHT...  
   
TONIGHT  
MOSTLY CLOUDY. A CHANCE OF RAIN AFTER MIDNIGHT.  
BREEZY. LOWS 37 TO 44. SOUTH WINDS 15 TO 25 MPH.    
WEDNESDAY...RAIN IN THE MORNING  
THEN A CHANCE OF RAIN SHOWERS  
AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. VERY  
WINDY. COOLER. HIGHS 48 TO 55. SOUTHWEST WINDS 15 TO 25 MPH...  
INCREASING TO 25 TO 35 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT...A CHANCE OF RAIN IN THE EVENING  
THEN RAIN  
AND SNOW LIKELY AFTER MIDNIGHT. WINDY. NO SNOW ACCUMULATION. LOWS  
32 TO 39. SOUTHWEST WINDS 20 TO 30 MPH. CHANCE OF PRECIPITATION  
70 PERCENT.    
THURSDAY  
SNOW LIKELY AND A CHANCE OF RAIN. WINDY. HIGHS 48 TO  
55. SOUTHWEST WINDS 20 TO 30 MPH. CHANCE OF PRECIPITATION  
70 PERCENT.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW.  
LOWS 26 TO 33. WEST WINDS 10 TO 20 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND RAIN. HIGHS  
47 TO 54.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
RAIN AND SNOW. LOWS 24 TO 31. HIGHS 51 TO 58.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.  
LOWS 28 TO 35.    
SUNDAY  
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 53 TO 60.    
SUNDAY NIGHT AND MONDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
RAIN. LOWS 30 TO 37. HIGHS 54 TO 61.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS 31 TO 38.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 58 TO  
65.  
 
 
 
IDZ075-221000-  
WOOD RIVER FOOTHILLS-  
INCLUDING HAILEY, BELLEVUE, AND PICABO  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT  
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE  
EVENING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. BREEZY, COLDER. LOWS 31 TO 38.  
SOUTHEAST WINDS 15 TO 25 MPH...SHIFTING TO SOUTHWEST 10 TO 15 MPH  
AFTER MIDNIGHT.    
WEDNESDAY...SNOW AND RAIN IN THE MORNING  
THEN A CHANCE OF RAIN  
SHOWERS, SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WINDY. MUCH COOLER. SNOW ACCUMULATION UP TO 2 INCHES.  
SNOW LEVEL 6100 FEET. HIGHS 39 TO 49. SOUTHWEST WINDS 20 TO  
30 MPH.    
WEDNESDAY NIGHT...RAIN AND SNOW LIKELY IN THE EVENING  
THEN A  
CHANCE OF SNOW AND RAIN AFTER MIDNIGHT. WINDY. LITTLE OR NO SNOW  
ACCUMULATION. SNOW LEVEL 5500 FEET. LOWS 26 TO 33. WEST WINDS  
20 TO 30 MPH...DECREASING TO 10 TO 20 MPH AFTER MIDNIGHT.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 43 TO 53.  
WEST WINDS 10 TO 20 MPH.    
THURSDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 23 TO 30. WEST WINDS 10 TO 15 MPH.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 41 TO 51.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
22 TO 29.    
SATURDAY  
MOSTLY SUNNY WITH A CHANCE OF SNOW AND A SLIGHT  
CHANCE OF RAIN. HIGHS 44 TO 54.    
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 27 TO 34.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS, A SLIGHT  
CHANCE OF RAIN AND THUNDERSTORMS. HIGHS 46 TO 56.    
SUNDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
28 TO 35.    
MONDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 47 TO 57.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS 29 TO 36.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 51 TO  
61.  
 
 
 
IDZ069-221000-  
LOST RIVER RANGE-  
INCLUDING BORAH PEAK  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT  
TONIGHT TO 6 AM MDT THURSDAY ABOVE 6500 FEET ELEVATION...  
   
TONIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN AND SNOW AFTER  
MIDNIGHT. WINDY, COLDER. LOWS 34 TO 41. SOUTH WINDS AROUND 30 MPH  
IN THE EVENING.    
WEDNESDAY...SNOW WITH RAIN LIKELY IN THE MORNING  
THEN SNOW  
SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. WINDY, COLDER. SNOW ACCUMULATION OF 2 TO 4 INCHES.  
HIGHS 40 TO 50. SOUTHWEST WINDS AROUND 30 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT  
SNOW LIKELY. WINDY, COLDER. SNOW ACCUMULATION  
OF 2 TO 4 INCHES. LOWS 29 TO 36. WEST WINDS AROUND 30 MPH IN THE  
EVENING.    
THURSDAY  
SNOW LIKELY. BREEZY. HIGHS 42 TO 52.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. BREEZY,  
COLDER. ACCUMULATIONS POSSIBLE. LOWS 23 TO 30.    
FRIDAY  
SNOW LIKELY. HIGHS 36 TO 46.    
FRIDAY NIGHT AND SATURDAY  
MOSTLY CLOUDY. A CHANCE OF SNOW.  
LOWS 21 TO 28. HIGHS 39 TO 49.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 25 TO 32.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 43 TO 53.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
27 TO 34.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 44 TO 54.    
MONDAY NIGHT  
MOSTLY CLOUDY. LOWS 28 TO 35.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SNOW. HIGHS 48 TO  
58.  
 
 
 
IDZ063-064-221000-  
CARIBOU RANGE-BIG HOLE MOUNTAINS-  
INCLUDING WAYAN, SWAN VALLEY, AND VICTOR  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY  
TO MIDNIGHT MDT THURSDAY NIGHT ABOVE 6500 FEET ELEVATION...  
   
TONIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN IN THE  
EVENING...THEN PARTLY CLOUDY AFTER MIDNIGHT. COLDER. LOWS 37 TO  
44.    
WEDNESDAY...SNOW AND A CHANCE OF RAIN IN THE MORNING  
THEN SNOW  
SHOWERS, RAIN SHOWERS AND A CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. BREEZY, COOLER. SNOW ACCUMULATION OF 1 TO 3 INCHES.  
SNOW LEVEL 7000 FEET. HIGHS 44 TO 51.    
WEDNESDAY NIGHT...SNOW AND RAIN IN THE EVENING  
THEN SNOW AFTER  
MIDNIGHT. BREEZY, COLDER. SNOW ACCUMULATION OF 4 TO 5 INCHES.  
LOWS 29 TO 36.    
THURSDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS 40 TO 47.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.  
LOWS 23 TO 30.    
FRIDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS 37 TO 44.    
FRIDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 20 TO  
27.    
SATURDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 44 TO 51.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW AND RAIN.  
LOWS 26 TO 33.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 46 TO 53.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW AND RAIN.  
LOWS 26 TO 33.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 47 TO 54.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 27 TO 35.    
TUESDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 51 TO 58.  
 
 
 
IDZ068-070-221000-  
LOST RIVER VALLEY-CHALLIS/PAHSIMEROI VALLEYS-  
INCLUDING HOWE, ARCO, MACKAY, CHILLY, AND CHALLIS  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT  
PARTLY CLOUDY. A CHANCE OF RAIN AFTER MIDNIGHT.  
BREEZY, COLDER. LOWS 34 TO 42. SOUTH WINDS 15 TO 25 MPH...  
DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.    
WEDNESDAY...SNOW WITH RAIN LIKELY IN THE MORNING  
THEN RAIN  
SHOWERS, SNOW SHOWERS LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. BREEZY, COOLER. SNOW ACCUMULATION UP TO 1 INCH.  
HIGHS 42 TO 52. SOUTH WINDS 10 TO 20 MPH...SHIFTING TO WEST 15 TO  
25 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT  
SNOW LIKELY AND A CHANCE OF RAIN IN THE  
EVENING...THEN SNOW LIKELY AFTER MIDNIGHT. BREEZY, COLDER. SNOW  
ACCUMULATION UP TO 2 INCHES. LOWS 29 TO 36. WEST WINDS 15 TO  
25 MPH...DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 43 TO 53.  
WEST WINDS 10 TO 15 MPH.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.  
LOWS 23 TO 30. NORTHWEST WINDS 10 TO 15 MPH.    
FRIDAY  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. HIGHS 38 TO 48.    
FRIDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
20 TO 27.    
SATURDAY  
MOSTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 41 TO 51.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 24 TO 31.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 44 TO 54.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
26 TO 33.    
MONDAY  
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 45 TO 55.    
MONDAY NIGHT  
MOSTLY CLOUDY. LOWS 27 TO 34.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 49 TO 59.  
 
 
 
IDZ066-221000-  
CENTENNIAL MOUNTAINS - ISLAND PARK-  
INCLUDING ISLAND PARK AND KILGORE  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY  
TO MIDNIGHT MDT THURSDAY NIGHT ABOVE 6500 FEET ELEVATION...  
   
TONIGHT  
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT.  
LOWS 33 TO 40.    
WEDNESDAY...RAIN AND SNOW LIKELY IN THE MORNING  
THEN SNOW  
SHOWERS WITH POSSIBLE SHOWERS AND THUNDERSTORMS LIKELY IN THE  
AFTERNOON. BREEZY, COOLER. SNOW ACCUMULATION OF 1 TO 3 INCHES.  
SNOW LEVEL 7100 FEET. HIGHS 43 TO 50.    
WEDNESDAY NIGHT...SNOW AND RAIN IN THE EVENING  
THEN SNOW AFTER  
MIDNIGHT. COLDER. SNOW ACCUMULATION OF 4 TO 5 INCHES. LOWS 26 TO  
33.    
THURSDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
ACCUMULATIONS POSSIBLE. HIGHS 39 TO 47.    
THURSDAY NIGHT  
SNOW, COLDER. ACCUMULATIONS POSSIBLE. LOWS  
19 TO 26.    
FRIDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS 34 TO 41.    
FRIDAY NIGHT AND SATURDAY  
MOSTLY CLOUDY. A CHANCE OF SNOW.  
LOWS 16 TO 23. HIGHS 39 TO 47.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 20 TO  
27.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 44 TO 51.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 23 TO  
30.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND A SLIGHT CHANCE  
OF THUNDERSTORMS. HIGHS 45 TO 52.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 25 TO 32.    
TUESDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, A SLIGHT  
CHANCE OF THUNDERSTORMS AND SNOW. HIGHS 48 TO 56.  
 
 
 
IDZ067-221000-  
BEAVERHEAD - LEMHI HIGHLANDS-  
INCLUDING DUBOIS, SPENCER, EDIE SCHOOL, AND SMALL  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT...PARTLY CLOUDY IN THE EVENING  
THEN MOSTLY CLOUDY WITH  
A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. BREEZY, COLDER. LOWS  
33 TO 40.    
WEDNESDAY...RAIN LIKELY AND A CHANCE OF SNOW IN THE MORNING  
 
THEN SNOW SHOWERS WITH POSSIBLE SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. WINDY, COOLER. SNOW ACCUMULATION OF 1 TO 3 INCHES.  
SNOW LEVEL 6800 FEET. HIGHS 45 TO 55. SOUTHWEST WINDS AROUND  
30 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT  
SNOW AND RAIN. BREEZY. SNOW ACCUMULATION OF  
1 TO 2 INCHES. SNOW LEVEL 5900 FEET. LOWS 29 TO 36.    
THURSDAY  
SNOW. HIGHS 44 TO 54.    
THURSDAY NIGHT  
SNOW LIKELY. COLDER. ACCUMULATIONS POSSIBLE.  
LOWS 21 TO 29.    
FRIDAY  
SNOW LIKELY. HIGHS 36 TO 46.    
FRIDAY NIGHT AND SATURDAY  
MOSTLY CLOUDY. A CHANCE OF SNOW.  
LOWS 18 TO 28. HIGHS 40 TO 50.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 23 TO 32.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 45 TO 55.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 26 TO 34.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND RAIN. HIGHS  
46 TO 56.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW. LOWS  
27 TO 35.    
TUESDAY  
MOSTLY SUNNY WITH A CHANCE OF RAIN AND SNOW. HIGHS  
50 TO 60.  
 
 
 
IDZ065-221000-  
TETON VALLEY-  
INCLUDING ASHTON, TETONIA, AND DRIGGS  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS 36 TO  
43.    
WEDNESDAY...RAIN LIKELY IN THE MORNING  
THEN RAIN SHOWERS WITH  
POSSIBLE THUNDERSTORMS AND SNOW SHOWERS IN THE AFTERNOON. WINDY,  
COOLER. NO SNOW ACCUMULATION. HIGHS 46 TO 53. SOUTHWEST WINDS  
AROUND 30 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT  
RAIN AND SNOW. WINDY, COLDER. SNOW  
ACCUMULATION UP TO 2 INCHES. SNOW LEVEL 6000 FEET. LOWS 28 TO 35.  
SOUTHWEST WINDS AROUND 30 MPH IN THE EVENING.    
THURSDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS 42 TO 49.    
THURSDAY NIGHT  
SNOW, COLDER. LOWS 21 TO 28.    
FRIDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS 37 TO 44.    
FRIDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 19 TO  
26.    
SATURDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS AROUND 47.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW AND  
RAIN. LOWS 23 TO 30.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 47 TO 54.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND A SLIGHT  
CHANCE OF SNOW. LOWS 26 TO 33.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 48 TO 55.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 28 TO 35.    
TUESDAY  
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 52 TO 59.  
 
 
 
IDZ062-221000-  
BLACKFOOT MOUNTAINS-  
INCLUDING GRACE, SODA SPRINGS, HENRY, AND BONE  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT...MOSTLY CLOUDY IN THE EVENING  
THEN PARTLY CLOUDY WITH  
A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. LOWS 34 TO 42.    
WEDNESDAY  
RAIN SHOWERS, SNOW SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS, SNOW SHOWERS  
AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WINDY, COOLER.  
LITTLE OR NO SNOW ACCUMULATION. HIGHS 44 TO 51. SOUTHWEST WINDS  
AROUND 30 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT  
SNOW AND RAIN. WINDY, COLDER. SNOW  
ACCUMULATION UP TO 2 INCHES. SNOW LEVEL 5900 FEET. LOWS 28 TO 36.  
SOUTHWEST WINDS AROUND 30 MPH IN THE EVENING.    
THURSDAY  
SNOW, BREEZY. HIGHS 41 TO 48.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.  
LOWS 21 TO 31.    
FRIDAY  
SNOW SHOWERS LIKELY AND A SLIGHT CHANCE OF  
THUNDERSTORMS. HIGHS 40 TO 48.    
FRIDAY NIGHT  
PARTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 20 TO  
29.    
SATURDAY  
MOSTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 45 TO 54.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 26 TO 34.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 47 TO 54.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 26 TO 36.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 47 TO 54.    
MONDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 27 TO 37.    
TUESDAY  
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 52 TO 59.  
 
 
 
IDZ060-221000-  
BEAR RIVER RANGE-  
INCLUDING EMIGRATION SUMMIT  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY  
TO MIDNIGHT MDT THURSDAY NIGHT ABOVE 6500 FEET ELEVATION...  
   
TONIGHT...MOSTLY CLOUDY IN THE EVENING  
THEN MOSTLY CLEAR WITH  
A SLIGHT CHANCE OF RAIN AFTER MIDNIGHT. COLDER. LOWS 37 TO 44.    
WEDNESDAY  
SNOW SHOWERS, A SLIGHT CHANCE OF RAIN AND  
THUNDERSTORMS IN THE MORNING...THEN SNOW SHOWERS LIKELY, A CHANCE  
OF THUNDERSTORMS AND RAIN SHOWERS LIKELY IN THE AFTERNOON.  
BREEZY, COOLER. SNOW MAY BE HEAVY AT TIMES IN THE AFTERNOON. SNOW  
ACCUMULATION OF 2 TO 4 INCHES. SNOW LEVEL 6800 FEET. HIGHS 43 TO  
50.    
WEDNESDAY NIGHT  
SNOW, COLDER. SNOW ACCUMULATION OF 3 TO  
5 INCHES. LOWS 31 TO 38.    
THURSDAY  
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS.  
HIGHS 40 TO 47.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 27 TO  
34.    
FRIDAY  
SNOW SHOWERS LIKELY AND A SLIGHT CHANCE OF  
THUNDERSTORMS. HIGHS 41 TO 48.    
FRIDAY NIGHT AND SATURDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SNOW. LOWS 28 TO 35. HIGHS 47 TO 54.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW AND A  
SLIGHT CHANCE OF RAIN. LOWS 33 TO 40.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS, RAIN AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 46 TO 53.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW AND RAIN.  
LOWS 33 TO 40.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 46 TO 53.    
MONDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 34 TO 41.    
TUESDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN, A SLIGHT CHANCE OF  
THUNDERSTORMS AND SNOW. HIGHS 51 TO 58.  
 
 
 
IDZ061-221000-  
BEAR LAKE VALLEY-  
INCLUDING ST. CHARLES, MONTPELIER, AND GEORGETOWN  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT  
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS 36 TO  
43.    
WEDNESDAY...SNOW LIKELY AND A CHANCE OF RAIN IN THE MORNING  
 
THEN MOSTLY CLOUDY WITH A CHANCE OF THUNDERSTORMS, RAIN SHOWERS  
AND SNOW SHOWERS IN THE AFTERNOON. BREEZY, COOLER. LITTLE OR NO  
SNOW ACCUMULATION. HIGHS 46 TO 53.    
WEDNESDAY NIGHT...SNOW AND RAIN IN THE EVENING  
THEN SNOW  
LIKELY AFTER MIDNIGHT. COLDER. SNOW ACCUMULATION UP TO 2 INCHES.  
SNOW LEVEL 6100 FEET. LOWS 28 TO 36.    
THURSDAY  
SNOW AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS  
42 TO 49.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 24 TO  
32.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS. HIGHS 42 TO 49.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS 21 TO 31.    
SATURDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 49 TO 56.    
SATURDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 29 TO 37.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW AND A  
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 49 TO 56.    
SUNDAY NIGHT  
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. LOWS 26 TO 35.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 48 TO 55.    
MONDAY NIGHT AND TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
RAIN. LOWS 27 TO 36. HIGHS 54 TO 61.  
 
 
 
IDZ071-074-221000-  
FRANK CHURCH WILDERNESS-BIG LOST HIGHLANDS/COPPER BASIN-  
INCLUDING CLAYTON AND COPPER BASIN  
1247 PM MDT TUE APR 21 2026  
 
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM MIDNIGHT  
TONIGHT TO 6 AM MDT THURSDAY ABOVE 6500 FEET ELEVATION...  
   
TONIGHT  
PARTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE  
EVENING...THEN A CHANCE OF SNOW AND A SLIGHT CHANCE OF RAIN AFTER  
MIDNIGHT. COLDER. SNOW ACCUMULATION UP TO 1 INCH. LOWS 31 TO 39.    
WEDNESDAY...SNOW IN THE MORNING  
THEN SNOW AND A SLIGHT CHANCE  
OF THUNDERSTORMS IN THE AFTERNOON. BREEZY, COLDER. SNOW  
ACCUMULATION OF 2 TO 6 INCHES. HIGHS 37 TO 47.    
WEDNESDAY NIGHT  
SNOW, BREEZY, COLDER. SNOW ACCUMULATION OF  
2 TO 4 INCHES. LOWS 25 TO 33.    
THURSDAY  
SNOW LIKELY. HIGHS 37 TO 47.    
THURSDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. COLDER.  
LOWS 19 TO 26.    
FRIDAY  
SNOW LIKELY. HIGHS 34 TO 44.    
FRIDAY NIGHT  
MOSTLY CLOUDY WITH A CHANCE OF SNOW. LOWS 16 TO  
25.    
SATURDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 38 TO 48.    
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW.  
LOWS 20 TO 29.    
SUNDAY AND SUNDAY NIGHT  
MOSTLY CLOUDY. A SLIGHT CHANCE OF  
SNOW. HIGHS 40 TO 50. LOWS 21 TO 31.    
MONDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW. HIGHS 42 TO 52.    
MONDAY NIGHT AND TUESDAY  
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SNOW. LOWS 22 TO 32. HIGHS 46 TO 56.  
 
 
 
IDZ055-221000-  
EASTERN MAGIC VALLEY-  
INCLUDING BURLEY, RUPERT, HEYBURN, AND OAKLEY  
1247 PM MDT TUE APR 21 2026  
   
TONIGHT...PARTLY CLOUDY IN THE EVENING  
THEN MOSTLY CLOUDY WITH  
A CHANCE OF RAIN AFTER MIDNIGHT. BREEZY, COLDER. LOWS 36 TO 43.  
SOUTH WINDS 15 TO 25 MPH...SHIFTING TO SOUTHWEST AFTER MIDNIGHT.    
WEDNESDAY...RAIN LIKELY IN THE MORNING  
THEN RAIN SHOWERS AND A  
SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON. WINDY. MUCH  
COOLER. HIGHS 47 TO 54. WEST WINDS 20 TO 30 MPH. GUSTS UP TO  
40 MPH IN THE AFTERNOON.    
WEDNESDAY NIGHT...A CHANCE OF RAIN IN THE EVENING  
THEN RAIN  
AND SNOW LIKELY AFTER MIDNIGHT. WINDY. LITTLE OR NO SNOW  
ACCUMULATION. LOWS 31 TO 38. WEST WINDS 20 TO 30 MPH. CHANCE OF  
PRECIPITATION 70 PERCENT.    
THURSDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN AND SNOW. WINDY.  
HIGHS 49 TO 56. WEST WINDS 20 TO 30 MPH. CHANCE OF PRECIPITATION  
50 PERCENT.    
THURSDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND  
SNOW. BREEZY. LOWS 26 TO 34. WEST WINDS 15 TO 25 MPH. CHANCE OF  
PRECIPITATION 20 PERCENT.    
FRIDAY  
PARTLY SUNNY WITH A CHANCE OF SNOW AND RAIN. HIGHS  
48 TO 55.    
FRIDAY NIGHT  
PARTLY CLOUDY. LOWS 26 TO 33.    
SATURDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN AND SNOW.  
HIGHS 52 TO 59.    
SATURDAY NIGHT  
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.  
LOWS 29 TO 36.    
SUNDAY  
PARTLY SUNNY WITH A CHANCE OF RAIN AND A SLIGHT CHANCE  
OF SNOW. HIGHS 53 TO 60.    
SUNDAY NIGHT  
PARTLY CLOUDY. LOWS 31 TO 38.    
MONDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 54 TO  
61.    
MONDAY NIGHT  
PARTLY CLOUDY. LOWS 32 TO 39.    
TUESDAY  
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 58 TO  
65.  
 
 
 
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