546
FPUS55 KPIH 311837
ZFPPIH
ZONE FORECAST PRODUCT FOR IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
1236 PM MDT MON AUG 31 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.
IDZ072-011000-
SAWTOOTH/STANLEY BASIN-
INCLUDING STANLEY
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLEAR. LOWS 37 TO 47.
TUESDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS 71 TO 81.
TUESDAY NIGHT
RAIN SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF RAIN SHOWERS
AFTER MIDNIGHT. LOWS 34 TO 44.
WEDNESDAY
RAIN SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS. HIGHS 56 TO 66.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS 32 TO 42.
THURSDAY
RAIN SHOWERS LIKELY AND A CHANCE OF SNOW SHOWERS.
HIGHS 53 TO 63.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
MOSTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS
32 TO 42. HIGHS 58 TO 68.
SATURDAY
PARTLY SUNNY WITH A CHANCE OF RAIN. HIGHS 63 TO 73.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY WITH A
CHANCE OF RAIN. LOWS 34 TO 44. HIGHS 62 TO 72.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 63 TO 73.
IDZ073-011000-
SUN VALLEY REGION-
INCLUDING KETCHUM, SUN VALLEY, AND GALENA
1236 PM MDT MON AUG 31 2026
TONIGHT
PARTLY CLOUDY. LOWS 41 TO 51.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS 69 TO 77.
TUESDAY NIGHT
RAIN SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 39 TO 49.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 58 TO 68.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 47.
THURSDAY
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS AND
SNOW SHOWERS. HIGHS 58 TO 67.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN AND
SNOW. LOWS 36 TO 46.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, A SLIGHT
CHANCE OF THUNDERSTORMS AND SNOW. HIGHS 61 TO 69.
FRIDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 38 TO
48.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS
64 TO 73.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLOUDY. A CHANCE OF RAIN.
LOWS 40 TO 50. HIGHS 62 TO 71.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 39 TO
49.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 63 TO 72.
IDZ052-053-011000-
ARCO/MUD LAKE DESERT-UPPER SNAKE RIVER PLAIN-
INCLUDING MUD LAKE, INL, CRATERS OF THE MOON NM,
IDAHO FALLS, REXBURG, AND ST. ANTHONY
1236 PM MDT MON AUG 31 2026
TONIGHT...PARTLY CLOUDY IN THE EVENING
THEN MOSTLY CLOUDY WITH
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT.
LOWS 48 TO 57. SOUTHEAST WINDS UP TO 10 MPH...INCREASING TO 10 TO
15 MPH AFTER MIDNIGHT.
TUESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 72 TO 80. SOUTHEAST WINDS
10 TO 15 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. LOWS 46 TO
55. SOUTHEAST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND 25 MPH...
SHIFTING TO NORTHEAST AFTER MIDNIGHT. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY
MOSTLY SUNNY. BREEZY. HIGHS 67 TO 74. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 44 TO 51. SOUTHWEST WINDS
10 TO 15 MPH.
THURSDAY
MOSTLY SUNNY. HIGHS 68 TO 75.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 44 TO 52. HIGHS
70 TO 77.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 55.
SATURDAY
SUNNY. HIGHS 71 TO 78.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 47 TO
55.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 68 TO 75.
LOWS 46 TO 54.
LABOR DAY
PARTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 67 TO 74.
IDZ051-011000-
SHOSHONE/LAVA BEDS-
INCLUDING SHOSHONE, RICHFIELD, AND CAREY
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN
THE EVENING...THEN ISOLATED RAIN SHOWERS AFTER MIDNIGHT. WARMER.
LOWS 52 TO 61. EAST WINDS UP TO 10 MPH...INCREASING TO 10 TO
20 MPH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 79 TO 86. EAST WINDS 10 TO
20 MPH. CHANCE OF PRECIPITATION 50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING...THEN PARTLY
CLOUDY AFTER MIDNIGHT. LOWS 48 TO 55. EAST WINDS 10 TO 15 MPH.
GUSTS UP TO 25 MPH AFTER MIDNIGHT. CHANCE OF PRECIPITATION
50 PERCENT.
WEDNESDAY
MOSTLY SUNNY. BREEZY. HIGHS 69 TO 76. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 47 TO 54. WEST WINDS 10 TO
15 MPH.
THURSDAY AND THURSDAY NIGHT
PARTLY CLOUDY. HIGHS 70 TO 77.
LOWS 46 TO 53.
FRIDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 72 TO
79.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 47 TO 54. HIGHS
74 TO 81.
SATURDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 49 TO
56.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN. HIGHS 71 TO 78.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
48 TO 55.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS
71 TO 78.
IDZ056-057-011000-
SOUTHERN HILLS/ALBION MOUNTAINS-RAFT RIVER REGION-
INCLUDING ALBION, ALMO, MALTA, ROCKLAND,
AND HOLBROOK
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
WINDY. LOWS 50 TO 60. SOUTH WINDS 10 TO 20 MPH...INCREASING TO
20 TO 30 MPH AFTER MIDNIGHT.
TUESDAY
PARTLY SUNNY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. BREEZY. HIGHS 77 TO 84. SOUTH
WINDS 15 TO 25 MPH.
TUESDAY NIGHT
MOSTLY CLEAR. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. BREEZY. LOWS 47 TO 57. SOUTH WINDS
15 TO 25 MPH...DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS 71 TO 80. SOUTHWEST WINDS 10 TO
20 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 45 TO 55. WEST WINDS 10 TO
15 MPH.
THURSDAY THROUGH FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 73 TO 82.
LOWS 45 TO 55.
SATURDAY
SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 73 TO 82.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS
47 TO 57. HIGHS 71 TO 78.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 71 TO 78.
IDZ058-059-011000-
MARSH AND ARBON HIGHLANDS-FRANKLIN/EASTERN ONEIDA REGION-
INCLUDING INKOM, MCCAMMON, DOWNEY,
LAVA HOT SPRINGS, MALAD, PRESTON, AND THATCHER
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY WITH SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. LOWS 48 TO 58.
TUESDAY
MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING...THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. BREEZY. HIGHS 73 TO 83.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS IN THE EVENING...THEN MOSTLY CLEAR AFTER
MIDNIGHT. BREEZY. LOWS 48 TO 58.
WEDNESDAY
SUNNY, BREEZY. HIGHS 68 TO 78.
WEDNESDAY NIGHT
PARTLY CLOUDY. COLDER. LOWS 44 TO 54.
THURSDAY THROUGH FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 71 TO 81.
LOWS 47 TO 57.
SATURDAY
SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 71 TO 81.
SATURDAY NIGHT THROUGH SUNDAY NIGHT
MOSTLY CLOUDY WITH A
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS
48 TO 58. HIGHS 67 TO 77.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 68 TO 78.
IDZ054-011000-
LOWER SNAKE RIVER PLAIN-
INCLUDING POCATELLO, BLACKFOOT, AMERICAN FALLS,
SHELLEY, AND FORT HALL
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN
THE EVENING...THEN SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. WARMER. LOWS 51 TO 59. SOUTHEAST
WINDS 10 TO 20 MPH.
TUESDAY
MOSTLY SUNNY. A CHANCE OF RAIN SHOWERS IN THE
MORNING...THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS 76 TO 83. EAST WINDS 10 TO 15 MPH...SHIFTING
TO SOUTH 10 TO 20 MPH IN THE AFTERNOON. CHANCE OF PRECIPITATION
50 PERCENT.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING...THEN MOSTLY
CLEAR AFTER MIDNIGHT. LOWS 47 TO 57. SOUTH WINDS 10 TO 20 MPH...
SHIFTING TO EAST 10 TO 15 MPH AFTER MIDNIGHT. CHANCE OF
PRECIPITATION 50 PERCENT.
WEDNESDAY
MOSTLY SUNNY. BREEZY. HIGHS 68 TO 76. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 52. SOUTHWEST WINDS
AROUND 10 MPH.
THURSDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 70 TO 80. LOWS
45 TO 55.
SATURDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 47 TO
56.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 69 TO 77.
LOWS 46 TO 54.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 68 TO 76.
IDZ075-011000-
WOOD RIVER FOOTHILLS-
INCLUDING HAILEY, BELLEVUE, AND PICABO
1236 PM MDT MON AUG 31 2026
TONIGHT...PARTLY CLOUDY IN THE EVENING
THEN MOSTLY CLOUDY WITH
ISOLATED RAIN SHOWERS AFTER MIDNIGHT. LOWS 47 TO 56. SOUTHEAST
WINDS UP TO 10 MPH...SHIFTING TO NORTHEAST AROUND 10 MPH AFTER
MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS 71 TO 81. EAST WINDS 10 TO 20 MPH.
TUESDAY NIGHT
RAIN SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY AFTER MIDNIGHT.
LOWS 44 TO 54. NORTHEAST WINDS 10 TO 15 MPH.
WEDNESDAY
MOSTLY SUNNY. BREEZY. HIGHS 61 TO 71. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 42 TO 52. WEST WINDS 10 TO
15 MPH.
THURSDAY
PARTLY SUNNY. HIGHS 61 TO 71.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. HIGHS 63 TO 73. LOWS 44 TO 54.
SATURDAY
SUNNY. HIGHS 66 TO 76.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 45 TO
55.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN. HIGHS
64 TO 74. LOWS 44 TO 54.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 64 TO 74.
IDZ069-011000-
LOST RIVER RANGE-
INCLUDING BORAH PEAK
1236 PM MDT MON AUG 31 2026
TONIGHT...PARTLY CLOUDY IN THE EVENING
THEN MOSTLY CLOUDY WITH
ISOLATED RAIN SHOWERS AFTER MIDNIGHT. LOWS 47 TO 54.
TUESDAY
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. BREEZY. HIGHS 68 TO 78.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. LOWS 44 TO
51.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS. BREEZY.
HIGHS 61 TO 70.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 43 TO 50.
THURSDAY
MOSTLY SUNNY. BREEZY. HIGHS 60 TO 70.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 43 TO 50.
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 62 TO 72.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. A SLIGHT CHANCE OF
RAIN. LOWS 45 TO 52. HIGHS 64 TO 74.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 47 TO
54.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 61 TO 71.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 46 TO
53.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 62 TO 72.
IDZ063-064-011000-
CARIBOU RANGE-BIG HOLE MOUNTAINS-
INCLUDING WAYAN, SWAN VALLEY, AND VICTOR
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY. ISOLATED SHOWERS AND THUNDERSTORMS IN
THE EVENING...THEN SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. LOWS 45 TO 55.
TUESDAY
PARTLY SUNNY. A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING...THEN A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 70 TO 77.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 43 TO 53.
WEDNESDAY
SUNNY, BREEZY. HIGHS 66 TO 73.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 50.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. HIGHS 67 TO 76. LOWS
41 TO 51.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 44 TO 54.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 70 TO 77.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 44 TO 53.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 66 TO 73.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 42 TO 52.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 66 TO 73.
IDZ068-070-011000-
LOST RIVER VALLEY-CHALLIS/PAHSIMEROI VALLEYS-
INCLUDING HOWE, ARCO, MACKAY, CHILLY, AND CHALLIS
1236 PM MDT MON AUG 31 2026
TONIGHT...PARTLY CLOUDY IN THE EVENING
THEN MOSTLY CLOUDY WITH
ISOLATED RAIN SHOWERS AFTER MIDNIGHT. LOWS 45 TO 53. SOUTH WINDS
AROUND 10 MPH.
TUESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON. HIGHS 72 TO 82. SOUTHEAST WINDS 10 TO 20 MPH.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. LOWS 43 TO
51. SOUTH WINDS 10 TO 15 MPH...SHIFTING TO EAST AFTER MIDNIGHT.
WEDNESDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 64 TO 74. SOUTH WINDS 10 TO
20 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 41 TO 49. SOUTHWEST WINDS
10 TO 15 MPH.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS.
HIGHS 62 TO 72.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 41 TO 49.
FRIDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 65 TO 75.
FRIDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 43 TO
51.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS
67 TO 77.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 44 TO
52.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 65 TO 75.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 43 TO
51.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 66 TO 76.
IDZ066-067-011000-
CENTENNIAL MOUNTAINS - ISLAND PARK-BEAVERHEAD - LEMHI HIGHLANDS-
INCLUDING ISLAND PARK, KILGORE, DUBOIS, SPENCER,
EDIE SCHOOL, AND SMALL
1236 PM MDT MON AUG 31 2026
TONIGHT...PARTLY CLOUDY IN THE EVENING
THEN MOSTLY CLOUDY WITH
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT.
LOWS 42 TO 52.
TUESDAY
PARTLY SUNNY. A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING...THEN A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 67 TO 74.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. LOWS 40 TO
50.
WEDNESDAY
MOSTLY SUNNY. HIGHS 63 TO 71.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 38 TO 48.
THURSDAY AND THURSDAY NIGHT
PARTLY CLOUDY. HIGHS 62 TO 71.
LOWS 39 TO 49.
FRIDAY
SUNNY. HIGHS 65 TO 73.
FRIDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
41 TO 51.
SATURDAY
MOSTLY SUNNY. HIGHS 66 TO 75.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 42 TO 52.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 63 TO 71.
LOWS 41 TO 51.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 63 TO 70.
IDZ065-011000-
TETON VALLEY-
INCLUDING ASHTON, TETONIA, AND DRIGGS
1236 PM MDT MON AUG 31 2026
TONIGHT...PARTLY CLOUDY IN THE EVENING
THEN NUMEROUS RAIN
SHOWERS AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT. LOWS 45 TO 52.
TUESDAY
RAIN SHOWERS LIKELY AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING...THEN A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON. HIGHS 70 TO 77.
TUESDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS AFTER MIDNIGHT. LOWS 42 TO 50.
WEDNESDAY
SUNNY, BREEZY. HIGHS AROUND 70.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 39 TO 47.
THURSDAY
MOSTLY SUNNY. HIGHS AROUND 71.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 40 TO 48. HIGHS
AROUND 73.
FRIDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN. LOWS
43 TO 51.
SATURDAY
MOSTLY SUNNY. HIGHS AROUND 74.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 43 TO 51.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS AROUND 70.
LOWS 42 TO 50.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS AROUND 69.
IDZ062-011000-
BLACKFOOT MOUNTAINS-
INCLUDING GRACE, SODA SPRINGS, HENRY, AND BONE
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY WITH SCATTERED RAIN SHOWERS AND ISOLATED
THUNDERSTORMS. BREEZY. LOWS 47 TO 57.
TUESDAY
PARTLY SUNNY. A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS IN THE MORNING...THEN A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 69 TO 78.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS IN THE EVENING...THEN MOSTLY
CLEAR WITH A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS AFTER
MIDNIGHT. BREEZY. LOWS 46 TO 56.
WEDNESDAY
MOSTLY SUNNY. BREEZY. HIGHS 65 TO 74.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 52.
THURSDAY THROUGH FRIDAY
MOSTLY CLEAR. BREEZY. HIGHS 67 TO 77.
LOWS 43 TO 53.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 46 TO 56.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 68 TO 77.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 46 TO 56.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 64 TO 73.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 45 TO 55.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 64 TO 73.
IDZ060-011000-
BEAR RIVER RANGE-
INCLUDING EMIGRATION SUMMIT
1236 PM MDT MON AUG 31 2026
TONIGHT
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING...THEN NUMEROUS RAIN SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. LOWS 54 TO 61.
TUESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 72 TO 79.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. BREEZY. LOWS 55 TO
62.
WEDNESDAY
SUNNY, BREEZY. HIGHS 69 TO 76.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 50 TO 58.
THURSDAY
SUNNY. HIGHS 70 TO 77.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 52 TO 60. HIGHS
71 TO 78.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 55 TO 62.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 72 TO 79.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 55 TO 62.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 68 TO 75.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 54 TO 61.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 68 TO 75.
IDZ061-011000-
BEAR LAKE VALLEY-
INCLUDING ST. CHARLES, MONTPELIER, AND GEORGETOWN
1236 PM MDT MON AUG 31 2026
TONIGHT
SCATTERED RAIN SHOWERS AND ISOLATED THUNDERSTORMS IN
THE EVENING...THEN NUMEROUS RAIN SHOWERS AND ISOLATED
THUNDERSTORMS AFTER MIDNIGHT. LOWS 44 TO 54.
TUESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 71 TO 78.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. A
SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS 43 TO 53.
WEDNESDAY
SUNNY. HIGHS 70 TO 77.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 50.
THURSDAY
SUNNY. HIGHS 71 TO 78.
THURSDAY NIGHT AND FRIDAY
MOSTLY CLEAR. LOWS 42 TO 52. HIGHS
72 TO 79.
FRIDAY NIGHT AND SATURDAY
PARTLY CLOUDY. LOWS 45 TO 55. HIGHS
72 TO 79.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 44 TO 54.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 68 TO 75.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 43 TO 53.
LABOR DAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 69 TO 76.
IDZ071-074-011000-
FRANK CHURCH WILDERNESS-BIG LOST HIGHLANDS/COPPER BASIN-
INCLUDING CLAYTON AND COPPER BASIN
1236 PM MDT MON AUG 31 2026
TONIGHT
PARTLY CLOUDY. LOWS 41 TO 51.
TUESDAY
PARTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS 71 TO 81.
TUESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING...THEN PARTLY CLOUDY WITH A SLIGHT
CHANCE OF RAIN SHOWERS AFTER MIDNIGHT. LOWS 38 TO 48.
WEDNESDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 60 TO 70.
WEDNESDAY NIGHT
MOSTLY CLOUDY. LOWS 36 TO 46.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS. HIGHS
57 TO 67.
THURSDAY NIGHT
PARTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 35 TO
45.
FRIDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 60 TO 70.
FRIDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. LOWS 37 TO 47.
SATURDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS
65 TO 75.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 39 TO
49.
SUNDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A SLIGHT
CHANCE OF THUNDERSTORMS. HIGHS 63 TO 73.
SUNDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 38 TO
48.
LABOR DAY
PARTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 64 TO 74.
IDZ055-011000-
EASTERN MAGIC VALLEY-
INCLUDING BURLEY, RUPERT, HEYBURN, AND OAKLEY
1236 PM MDT MON AUG 31 2026
TONIGHT
MOSTLY CLOUDY WITH ISOLATED SHOWERS AND THUNDERSTORMS.
BREEZY. LOWS 53 TO 60. SOUTHEAST WINDS 10 TO 15 MPH...INCREASING
TO 15 TO 25 MPH AFTER MIDNIGHT.
TUESDAY
MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING...THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE AFTERNOON. HIGHS 79 TO 86. SOUTHEAST WINDS 10 TO 20 MPH.
CHANCE OF PRECIPITATION 20 PERCENT.
TUESDAY NIGHT
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING. LOWS 50 TO 57. SOUTHEAST WINDS
10 TO 20 MPH. CHANCE OF PRECIPITATION 20 PERCENT.
WEDNESDAY
MOSTLY SUNNY. BREEZY. HIGHS 71 TO 78. SOUTHWEST
WINDS 15 TO 25 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 55. WEST WINDS 10 TO
15 MPH.
THURSDAY THROUGH SATURDAY
MOSTLY CLEAR. HIGHS 73 TO 82. LOWS
46 TO 55.
SATURDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 50 TO 57.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLOUDY. A CHANCE OF RAIN
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 72 TO 79.
LOWS 49 TO 56.
LABOR DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 72 TO 79.
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