531
FPUS55 KPIH 211832
ZFPPIH
ZONE FORECAST PRODUCT FOR IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
1231 PM MDT THU MAY 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
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 30 TO 40.
FRIDAY
MOSTLY SUNNY. HIGHS 59 TO 69.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 41.
SATURDAY
SUNNY, WARMER. HIGHS 66 TO 76.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 46.
SUNDAY
MOSTLY SUNNY. HIGHS 68 TO 78.
SUNDAY NIGHT AND MEMORIAL DAY
MOSTLY CLEAR. LOWS 37 TO 47.
HIGHS 68 TO 78.
MONDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
36 TO 46.
TUESDAY THROUGH WEDNESDAY
MOSTLY CLOUDY WITH A CHANCE OF RAIN
SHOWERS, SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS
55 TO 65. LOWS 30 TO 40.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 30 TO 40.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 56 TO 66.
IDZ073-221000-
SUN VALLEY REGION-
INCLUDING KETCHUM, SUN VALLEY, AND GALENA
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 31 TO 41.
FRIDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS 59 TO
69.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 43.
SATURDAY
SUNNY, WARMER. HIGHS 69 TO 79.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 49.
SUNDAY
MOSTLY SUNNY. HIGHS 70 TO 80.
SUNDAY NIGHT AND MEMORIAL DAY
MOSTLY CLEAR. LOWS 39 TO 49.
HIGHS 70 TO 80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 48.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF SNOW, A SLIGHT CHANCE OF
RAIN AND THUNDERSTORMS. HIGHS 59 TO 69.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 32 TO 40.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 56 TO 65.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 31 TO 40.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 57 TO 66.
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
1231 PM MDT THU MAY 21 2026
...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT
FRIDAY...
TONIGHT
PARTLY CLOUDY. LOWS 30 TO 38. NORTHEAST WINDS 10 TO
15 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 62 TO 71. NORTHEAST WINDS AROUND
10 MPH...SHIFTING TO SOUTHWEST IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 43. SOUTH WINDS AROUND
10 MPH...SHIFTING TO EAST AFTER MIDNIGHT.
SATURDAY
SUNNY, WARMER. HIGHS 71 TO 80. SOUTH WINDS AROUND
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 50. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 75 TO 83. LOWS
42 TO 51.
MEMORIAL DAY
SUNNY. HIGHS 77 TO 84.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. BREEZY. LOWS 43 TO 53.
HIGHS 67 TO 74.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 35 TO
44.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 62 TO 69.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 36 TO 44.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 64 TO 71.
IDZ051-221000-
SHOSHONE/LAVA BEDS-
INCLUDING SHOSHONE, RICHFIELD, AND CAREY
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 35 TO 45. NORTHEAST WINDS
10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS 68 TO
75. EAST WINDS 10 TO 15 MPH...SHIFTING TO SOUTHWEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 44. WEST WINDS AROUND
10 MPH...SHIFTING TO NORTHEAST UP TO 10 MPH AFTER MIDNIGHT.
SATURDAY
SUNNY, WARMER. HIGHS 77 TO 84. EAST WINDS UP TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 52. WEST WINDS AROUND
10 MPH.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 78 TO 85. LOWS
44 TO 52.
MEMORIAL DAY
SUNNY. HIGHS 80 TO 87.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. LOWS 43 TO 50. HIGHS
66 TO 73.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
BREEZY. LOWS 35 TO 42.
WEDNESDAY
SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 62 TO 69.
WEDNESDAY NIGHT AND THURSDAY
MOSTLY CLEAR. LOWS 36 TO 43.
HIGHS 65 TO 72.
IDZ056-057-221000-
SOUTHERN HILLS/ALBION MOUNTAINS-RAFT RIVER REGION-
INCLUDING ALBION, ALMO, MALTA, ROCKLAND,
AND HOLBROOK
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 36 TO 46. NORTH WINDS AROUND
10 MPH...SHIFTING TO SOUTHEAST UP TO 10 MPH AFTER MIDNIGHT.
FRIDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS 67 TO
74. SOUTHEAST WINDS UP TO 10 MPH...SHIFTING TO WEST AROUND 10 MPH
IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 49. WEST WINDS AROUND
10 MPH...SHIFTING TO SOUTH AFTER MIDNIGHT.
SATURDAY
SUNNY, WARMER. HIGHS 75 TO 82. SOUTHWEST WINDS 10 TO
15 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 57. SOUTH WINDS 10 TO
15 MPH.
SUNDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 77 TO 84.
SUNDAY NIGHT THROUGH MONDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO
57. HIGHS 79 TO 86.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. BREEZY. HIGHS 65 TO 75. LOWS 37 TO 45.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 62 TO 70.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 45.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 64 TO 71.
IDZ058-059-221000-
MARSH AND ARBON HIGHLANDS-FRANKLIN/EASTERN ONEIDA REGION-
INCLUDING INKOM, MCCAMMON, DOWNEY,
LAVA HOT SPRINGS, MALAD, PRESTON, AND THATCHER
1231 PM MDT THU MAY 21 2026
TONIGHT
PARTLY CLOUDY. COLDER. LOWS 30 TO 40.
FRIDAY
PARTLY SUNNY. WARMER. HIGHS 61 TO 71.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 45.
SATURDAY
SUNNY, WARMER. HIGHS 70 TO 80.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 42 TO 52.
SUNDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 73 TO 83.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 54.
MEMORIAL DAY
SUNNY. HIGHS 75 TO 84.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS
65 TO 75.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
36 TO 46.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 60 TO 70.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 35 TO 45.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 61 TO 71.
IDZ054-221000-
LOWER SNAKE RIVER PLAIN-
INCLUDING POCATELLO, BLACKFOOT, AMERICAN FALLS,
SHELLEY, AND FORT HALL
1231 PM MDT THU MAY 21 2026
...LAKE WIND ADVISORY NOW IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR AMERICAN FALLS RESERVOIR...
...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT
FRIDAY...
TONIGHT
INCREASING CLOUDS. LOWS 31 TO 39. NORTHEAST WINDS
10 TO 15 MPH...DECREASING TO UP TO 10 MPH AFTER MIDNIGHT.
FRIDAY
PARTLY SUNNY. HIGHS 65 TO 73. NORTHEAST WINDS UP TO
10 MPH...SHIFTING TO SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 34 TO 44. SOUTH WINDS AROUND
10 MPH...SHIFTING TO SOUTHEAST AFTER MIDNIGHT.
SATURDAY
SUNNY, WARMER. HIGHS 72 TO 82. SOUTH WINDS UP TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 74 TO 84. LOWS
43 TO 53.
MEMORIAL DAY
SUNNY. HIGHS 77 TO 85.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS
67 TO 74.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. BREEZY. LOWS 36 TO 44. HIGHS 63 TO 70.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 44.
THURSDAY
SUNNY. HIGHS 65 TO 72.
IDZ075-221000-
WOOD RIVER FOOTHILLS-
INCLUDING HAILEY, BELLEVUE, AND PICABO
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 35 TO 44. NORTHEAST WINDS
10 TO 15 MPH.
FRIDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS 61 TO
71. EAST WINDS UP TO 10 MPH...SHIFTING TO SOUTHWEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 36 TO 46. WEST WINDS AROUND
10 MPH...SHIFTING TO NORTH UP TO 10 MPH AFTER MIDNIGHT.
SATURDAY
SUNNY, WARMER. HIGHS 70 TO 80. WEST WINDS AROUND
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 54. NORTHWEST WINDS
AROUND 10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 72 TO 82.
SUNDAY NIGHT AND MEMORIAL DAY
MOSTLY CLEAR. LOWS 44 TO 54.
HIGHS 72 TO 82.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52.
TUESDAY AND TUESDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. HIGHS 61 TO 70. LOWS 35 TO 43.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 57 TO 66.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 35 TO 43.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 59 TO 68.
IDZ069-221000-
LOST RIVER RANGE-
INCLUDING BORAH PEAK
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 33 TO 40.
FRIDAY
PARTLY SUNNY. HIGHS 56 TO 66.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
37 TO 44.
SATURDAY
SUNNY, WARMER. HIGHS 66 TO 76.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 50.
SUNDAY
MOSTLY SUNNY. HIGHS 68 TO 78.
SUNDAY NIGHT AND MEMORIAL DAY
MOSTLY CLEAR. BREEZY. LOWS 44 TO
51. HIGHS 70 TO 80.
MONDAY NIGHT
PARTLY CLOUDY. BREEZY. LOWS 44 TO 51.
TUESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. WINDY. HIGHS 59 TO 69.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW.
BREEZY. LOWS 37 TO 44.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW AND
A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 56 TO 65.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 37 TO 44.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 58 TO 67.
IDZ063-064-221000-
CARIBOU RANGE-BIG HOLE MOUNTAINS-
INCLUDING WAYAN, SWAN VALLEY, AND VICTOR
1231 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 26 TO 35.
FRIDAY
PARTLY SUNNY. NOT AS COOL. HIGHS 58 TO 65.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 31 TO 40.
SATURDAY
SUNNY, WARMER. HIGHS 68 TO 76.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 48.
SUNDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 71 TO 79.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 48.
MEMORIAL DAY
SUNNY. HIGHS 73 TO 81.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 50.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 65 TO 74.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
36 TO 43.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 60 TO 68.
WEDNESDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS 35 TO 42.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 61 TO 69.
IDZ068-070-221000-
LOST RIVER VALLEY-CHALLIS/PAHSIMEROI VALLEYS-
INCLUDING HOWE, ARCO, MACKAY, CHILLY, AND CHALLIS
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 33 TO 40. NORTH WINDS AROUND
10 MPH IN THE EVENING...BECOMING LIGHT AND VARIABLE.
FRIDAY
PARTLY SUNNY. HIGHS 60 TO 70. LIGHT AND VARIABLE
WINDS...BECOMING SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
36 TO 43. WEST WINDS UP TO 10 MPH IN THE EVENING...BECOMING LIGHT
AND VARIABLE.
SATURDAY
SUNNY, WARMER. HIGHS 69 TO 79. SOUTHWEST WINDS UP TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 49. WEST WINDS AROUND
10 MPH.
SUNDAY
MOSTLY SUNNY. HIGHS 71 TO 81.
SUNDAY NIGHT AND MEMORIAL DAY
MOSTLY CLEAR. LOWS 42 TO 49.
HIGHS 72 TO 82.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 49.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. BREEZY. HIGHS 61 TO 71.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 36 TO
43.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 58 TO 68.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 35 TO 42.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 60 TO 70.
IDZ066-067-221000-
CENTENNIAL MOUNTAINS - ISLAND PARK-BEAVERHEAD - LEMHI HIGHLANDS-
INCLUDING ISLAND PARK, KILGORE, DUBOIS, SPENCER,
EDIE SCHOOL, AND SMALL
1231 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. LOWS 26 TO 36.
FRIDAY
MOSTLY SUNNY. HIGHS 57 TO 65.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
32 TO 42.
SATURDAY
SUNNY, WARMER. HIGHS 65 TO 74.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 48.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 70 TO 78. LOWS
38 TO 48.
MEMORIAL DAY
SUNNY. HIGHS 72 TO 80.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 49.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 63 TO 71.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 34 TO
42.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 59 TO 66.
WEDNESDAY NIGHT AND THURSDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS. LOWS 33 TO 42. HIGHS 61 TO 68.
IDZ065-221000-
TETON VALLEY-
INCLUDING ASHTON, TETONIA, AND DRIGGS
1231 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 26 TO 33.
FRIDAY
MOSTLY SUNNY. WARMER. HIGHS AROUND 63.
FRIDAY NIGHT
DECREASING CLOUDS. LOWS 33 TO 40.
SATURDAY
SUNNY, WARMER. HIGHS 68 TO 75.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 47.
SUNDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 72 TO 79.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 49.
MEMORIAL DAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 74 TO 81.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 50.
TUESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 67 TO 74.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 37 TO
44.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS AROUND 65.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS 36 TO 43.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 63 TO 70.
IDZ062-221000-
BLACKFOOT MOUNTAINS-
INCLUDING GRACE, SODA SPRINGS, HENRY, AND BONE
1231 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 27 TO 37.
FRIDAY
PARTLY SUNNY. WARMER. HIGHS 57 TO 66.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 33 TO 43.
SATURDAY
SUNNY, WARMER. HIGHS 65 TO 75.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 50.
SUNDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 68 TO 78.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52.
MEMORIAL DAY
SUNNY. HIGHS 71 TO 80.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. LOWS 44 TO 54. HIGHS
62 TO 71.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
36 TO 46.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 59 TO 67.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 35 TO 45.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 59 TO 67.
IDZ060-221000-
BEAR RIVER RANGE-
INCLUDING EMIGRATION SUMMIT
1231 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 34 TO 41.
FRIDAY
PARTLY SUNNY. NOT AS COOL. HIGHS 57 TO 64.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 47.
SATURDAY
SUNNY, WARMER. HIGHS 66 TO 73.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 48 TO 56.
SUNDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 70 TO 77.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 49 TO 57.
MEMORIAL DAY
SUNNY. HIGHS 72 TO 79.
MONDAY NIGHT
PARTLY CLOUDY. LOWS 51 TO 58.
TUESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 65 TO 72.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
44 TO 51.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 59 TO 66.
WEDNESDAY NIGHT
MOSTLY CLEAR WITH A SLIGHT CHANCE OF RAIN.
LOWS 42 TO 49.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 60 TO 67.
IDZ061-221000-
BEAR LAKE VALLEY-
INCLUDING ST. CHARLES, MONTPELIER, AND GEORGETOWN
1231 PM MDT THU MAY 21 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 27 TO 37.
FRIDAY
PARTLY SUNNY. HIGHS 58 TO 65.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 31 TO 41.
SATURDAY
SUNNY, WARMER. HIGHS 65 TO 74.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 46.
SUNDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 68 TO 78.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 48.
MEMORIAL DAY
SUNNY. HIGHS 70 TO 80.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. LOWS 41 TO 48. HIGHS
65 TO 73.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
35 TO 44.
WEDNESDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 61 TO 68.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 34 TO 43.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 61 TO 68.
IDZ071-074-221000-
FRANK CHURCH WILDERNESS-BIG LOST HIGHLANDS/COPPER BASIN-
INCLUDING CLAYTON AND COPPER BASIN
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 30 TO 39.
FRIDAY
PARTLY SUNNY. HIGHS 58 TO 68.
FRIDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
32 TO 42.
SATURDAY
SUNNY, WARMER. HIGHS 66 TO 76.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 49.
SUNDAY
MOSTLY SUNNY. HIGHS 68 TO 78.
SUNDAY NIGHT
MOSTLY CLEAR. LOWS 39 TO 49.
MEMORIAL DAY
SUNNY WITH A SLIGHT CHANCE OF RAIN. BREEZY. HIGHS
68 TO 78.
MONDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
38 TO 48.
TUESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, A SLIGHT
CHANCE OF THUNDERSTORMS AND SNOW. BREEZY. HIGHS 56 TO 66.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN, SNOW AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 32 TO 41.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 55 TO 65.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 31 TO 40.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 57 TO 67.
IDZ055-221000-
EASTERN MAGIC VALLEY-
INCLUDING BURLEY, RUPERT, HEYBURN, AND OAKLEY
1231 PM MDT THU MAY 21 2026
TONIGHT
INCREASING CLOUDS. LOWS 35 TO 45. EAST WINDS AROUND
10 MPH.
FRIDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS 68 TO
75. EAST WINDS AROUND 10 MPH...SHIFTING TO NORTHWEST IN THE
AFTERNOON.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 38 TO 48. SOUTHWEST WINDS
AROUND 10 MPH...SHIFTING TO SOUTH AFTER MIDNIGHT.
SATURDAY
SUNNY, WARMER. HIGHS 77 TO 84. SOUTH WINDS UP TO
10 MPH.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 57. SOUTHWEST WINDS
10 TO 15 MPH.
SUNDAY AND SUNDAY NIGHT
PARTLY CLOUDY. HIGHS 79 TO 86. LOWS
46 TO 56.
MEMORIAL DAY
SUNNY. HIGHS 80 TO 87.
MONDAY NIGHT AND TUESDAY
PARTLY CLOUDY. BREEZY. LOWS 45 TO 54.
HIGHS 68 TO 75.
TUESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
BREEZY. LOWS 36 TO 45.
WEDNESDAY
SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 63 TO 70.
WEDNESDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 46.
THURSDAY
SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 66 TO 73.
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