061
FPUS55 KPIH 190242
ZFPPIH
ZONE FORECAST PRODUCT FOR IDAHO
NATIONAL WEATHER SERVICE POCATELLO ID
841 PM MDT MON MAY 18 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.
IDZ072-191000-
SAWTOOTH/STANLEY BASIN-
INCLUDING STANLEY
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 23 TO 33.
TUESDAY
INCREASING CLOUDS. HIGHS 50 TO 60.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
26 TO 36.
WEDNESDAY
MOSTLY CLOUDY. HIGHS 52 TO 62.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND SNOW SHOWERS. LOWS 26 TO 36.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SNOW SHOWERS.
HIGHS 58 TO 68.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 30 TO 40. HIGHS
60 TO 70.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 31 TO 41. HIGHS
66 TO 76.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 45.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 68 TO 78. LOWS
36 TO 46.
MEMORIAL DAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS
65 TO 75.
IDZ073-191000-
SUN VALLEY REGION-
INCLUDING KETCHUM, SUN VALLEY, AND GALENA
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 26 TO 33.
TUESDAY
INCREASING CLOUDS. HIGHS 51 TO 61.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
28 TO 37.
WEDNESDAY
MOSTLY SUNNY. HIGHS 55 TO 65.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SNOW
SHOWERS. LOWS 29 TO 38.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS AND
SNOW SHOWERS. HIGHS 59 TO 69.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 31 TO 41. HIGHS
61 TO 71.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 33 TO 43. HIGHS
67 TO 77.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 46.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 70 TO 80. LOWS
38 TO 48.
IDZ052-053-191000-
ARCO/MUD LAKE DESERT-UPPER SNAKE RIVER PLAIN-
INCLUDING MUD LAKE, INL, CRATERS OF THE MOON NM,
IDAHO FALLS, REXBURG, AND ST. ANTHONY
841 PM MDT MON MAY 18 2026
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
MDT TUESDAY...
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 24 TO 32. NORTHEAST WINDS
10 TO 15 MPH.
TUESDAY...SUNNY. HIGHS 56 TO 64. EAST WINDS UP TO 10 MPH
SHIFTING TO SOUTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 29 TO 37. SOUTH WINDS 10 TO
15 MPH.
WEDNESDAY
MOSTLY SUNNY. HIGHS 60 TO 67. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS.
LOWS 35 TO 42. NORTHWEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 59 TO 67.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 32 TO 40.
FRIDAY
SUNNY. HIGHS 63 TO 72.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 43.
SATURDAY
SUNNY. HIGHS 70 TO 78.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 39 TO 48.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 75 TO 84. LOWS
42 TO 51.
IDZ051-191000-
SHOSHONE/LAVA BEDS-
INCLUDING SHOSHONE, RICHFIELD, AND CAREY
841 PM MDT MON MAY 18 2026
...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT
TUESDAY...
TONIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS 28 TO
36. NORTH WINDS AROUND 10 MPH...SHIFTING TO NORTHEAST UP TO
10 MPH AFTER MIDNIGHT.
TUESDAY...SUNNY. HIGHS 60 TO 67. EAST WINDS UP TO 10 MPH
SHIFTING TO SOUTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 32 TO 39. WEST WINDS 10 TO
15 MPH IN THE EVENING...BECOMING LIGHT AND VARIABLE.
WEDNESDAY
MOSTLY SUNNY. HIGHS 64 TO 71. WEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS 37 TO 44. WEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 20 PERCENT.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 65 TO 73.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 43.
FRIDAY AND FRIDAY NIGHT
MOSTLY CLEAR. HIGHS 68 TO 75. LOWS
37 TO 45.
SATURDAY
SUNNY. HIGHS 75 TO 82.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 50.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 78 TO 86. LOWS
43 TO 51.
IDZ056-057-191000-
SOUTHERN HILLS/ALBION MOUNTAINS-RAFT RIVER REGION-
INCLUDING ALBION, ALMO, MALTA, ROCKLAND,
AND HOLBROOK
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 28 TO 37. NORTH WINDS 10 TO
15 MPH...SHIFTING TO NORTHWEST AFTER MIDNIGHT.
TUESDAY...SUNNY. HIGHS 58 TO 65. LIGHT AND VARIABLE WINDS
BECOMING NORTHWEST AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 34 TO 44. WEST WINDS AROUND
10 MPH...SHIFTING TO SOUTH UP TO 10 MPH AFTER MIDNIGHT.
WEDNESDAY
SUNNY. HIGHS 64 TO 71. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS.
LOWS 38 TO 47. WEST WINDS AROUND 10 MPH.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 63 TO 71.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 37 TO 47.
FRIDAY
MOSTLY SUNNY. HIGHS 67 TO 75.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 40 TO 50.
SATURDAY AND SATURDAY NIGHT
PARTLY CLOUDY. HIGHS 73 TO 81.
LOWS 45 TO 55.
SUNDAY
SUNNY. HIGHS 77 TO 85.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 47 TO 57.
MEMORIAL DAY
SUNNY. HIGHS 77 TO 85.
IDZ058-059-191000-
MARSH AND ARBON HIGHLANDS-FRANKLIN/EASTERN ONEIDA REGION-
INCLUDING INKOM, MCCAMMON, DOWNEY,
LAVA HOT SPRINGS, MALAD, PRESTON, AND THATCHER
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 24 TO 34.
TUESDAY
SUNNY. HIGHS 54 TO 64.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 30 TO 40.
WEDNESDAY
SUNNY. HIGHS 58 TO 68.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS 35 TO 45.
THURSDAY
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
HIGHS 58 TO 68.
THURSDAY NIGHT
MOSTLY CLEAR. LOWS 32 TO 42.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 62 TO 72. LOWS
36 TO 46.
SATURDAY
SUNNY. HIGHS 68 TO 78.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 50.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 73 TO 83. LOWS
43 TO 53.
IDZ054-191000-
LOWER SNAKE RIVER PLAIN-
INCLUDING POCATELLO, BLACKFOOT, AMERICAN FALLS,
SHELLEY, AND FORT HALL
841 PM MDT MON MAY 18 2026
...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
MDT TUESDAY...
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 24 TO 34. NORTH WINDS 10 TO
15 MPH...SHIFTING TO NORTHEAST AFTER MIDNIGHT.
TUESDAY...SUNNY. HIGHS 59 TO 66. NORTHEAST WINDS UP TO 10 MPH
SHIFTING TO SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 29 TO 39. SOUTH WINDS 10 TO
15 MPH.
WEDNESDAY
SUNNY. HIGHS 63 TO 70. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS.
LOWS 37 TO 44. SOUTHWEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 50 PERCENT.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 62 TO 69.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 33 TO 41.
FRIDAY
SUNNY. HIGHS 65 TO 73.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 44.
SATURDAY
SUNNY. HIGHS 72 TO 79.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 49.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 75 TO 83. LOWS
42 TO 52.
IDZ075-191000-
WOOD RIVER FOOTHILLS-
INCLUDING HAILEY, BELLEVUE, AND PICABO
841 PM MDT MON MAY 18 2026
TONIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS 29 TO
36. NORTHEAST WINDS UP TO 10 MPH.
TUESDAY...SUNNY. HIGHS 53 TO 63. SOUTHEAST WINDS UP TO 10 MPH
SHIFTING TO SOUTHWEST IN THE AFTERNOON.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 31 TO 39. WEST WINDS 10 TO
15 MPH...SHIFTING TO NORTH AFTER MIDNIGHT.
WEDNESDAY
MOSTLY SUNNY. HIGHS 57 TO 67. WEST WINDS 10 TO
15 MPH.
WEDNESDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS 33 TO 42. NORTHWEST WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS.
HIGHS 60 TO 70.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 35 TO 44. HIGHS
62 TO 72.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 37 TO 46. HIGHS
68 TO 78.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 41 TO 51.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 72 TO 82. LOWS
42 TO 52.
IDZ069-191000-
LOST RIVER RANGE-
INCLUDING BORAH PEAK
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 28 TO 35.
TUESDAY
MOSTLY SUNNY. HIGHS 51 TO 61.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
32 TO 39.
WEDNESDAY
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SNOW SHOWERS.
HIGHS 54 TO 64.
WEDNESDAY NIGHT
RAIN SHOWERS, SNOW SHOWERS LIKELY AND A SLIGHT
CHANCE OF THUNDERSTORMS. LOWS 34 TO 41.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS. HIGHS 55 TO 65.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO
44. HIGHS 58 TO 68.
SATURDAY
SUNNY. HIGHS 65 TO 75.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 42 TO 49.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 69 TO 79. LOWS
44 TO 51.
MEMORIAL DAY
MOSTLY SUNNY. BREEZY. HIGHS 69 TO 79.
IDZ063-064-191000-
CARIBOU RANGE-BIG HOLE MOUNTAINS-
INCLUDING WAYAN, SWAN VALLEY, AND VICTOR
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. COLDER. LOWS 22 TO 32.
TUESDAY
SUNNY. NOT AS COOL. HIGHS 52 TO 59.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 27 TO 37.
WEDNESDAY
MOSTLY SUNNY. HIGHS 57 TO 64.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS
AND A SLIGHT CHANCE OF SNOW SHOWERS. LOWS 32 TO 39.
THURSDAY
RAIN SHOWERS LIKELY WITH POCKETS OF SNOW SHOWERS AND
THUNDERSTORMS. HIGHS 56 TO 63.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS 30 TO 38.
FRIDAY AND FRIDAY NIGHT
PARTLY CLOUDY. HIGHS 60 TO 67. LOWS
32 TO 40.
SATURDAY
SUNNY. HIGHS 67 TO 74.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 45.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 72 TO 82. LOWS
38 TO 48.
IDZ068-070-191000-
LOST RIVER VALLEY-CHALLIS/PAHSIMEROI VALLEYS-
INCLUDING HOWE, ARCO, MACKAY, CHILLY, AND CHALLIS
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 27 TO 34. NORTH WINDS AROUND
10 MPH IN THE EVENING...BECOMING LIGHT AND VARIABLE.
TUESDAY
MOSTLY SUNNY. HIGHS 54 TO 64. LIGHT AND VARIABLE
WINDS...BECOMING SOUTHWEST AROUND 10 MPH IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
31 TO 38. WEST WINDS AROUND 10 MPH IN THE EVENING...BECOMING
LIGHT AND VARIABLE.
WEDNESDAY
PARTLY SUNNY. HIGHS 56 TO 66. WEST WINDS UP TO
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS
AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 32 TO 39. NORTHWEST
WINDS 10 TO 15 MPH.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF RAIN SHOWERS AND SNOW
SHOWERS. HIGHS 58 TO 68.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS 33 TO
43. HIGHS 61 TO 71.
SATURDAY
SUNNY. HIGHS 68 TO 78.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 40 TO 47.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 71 TO 81. LOWS
41 TO 49.
MEMORIAL DAY
MOSTLY SUNNY. HIGHS 71 TO 81.
IDZ066-067-191000-
CENTENNIAL MOUNTAINS - ISLAND PARK-BEAVERHEAD - LEMHI HIGHLANDS-
INCLUDING ISLAND PARK, KILGORE, DUBOIS, SPENCER,
EDIE SCHOOL, AND SMALL
841 PM MDT MON MAY 18 2026
TONIGHT
MOSTLY CLEAR. LOWS 24 TO 32.
TUESDAY
MOSTLY SUNNY. HIGHS 51 TO 59.
TUESDAY NIGHT
MOSTLY CLOUDY. LOWS 27 TO 37.
WEDNESDAY
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN SHOWERS.
HIGHS 54 TO 62.
WEDNESDAY NIGHT
RAIN SHOWERS AND SNOW SHOWERS LIKELY. LOWS
29 TO 39.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF RAIN SHOWERS, SNOW
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. HIGHS 54 TO 62.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS 30 TO
40. HIGHS 59 TO 66.
SATURDAY
SUNNY. HIGHS 66 TO 73.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 35 TO 45.
SUNDAY
SUNNY. HIGHS 71 TO 79.
SUNDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 48.
MEMORIAL DAY
SUNNY. HIGHS 71 TO 79.
IDZ065-191000-
TETON VALLEY-
INCLUDING ASHTON, TETONIA, AND DRIGGS
841 PM MDT MON MAY 18 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 22 TO 29.
TUESDAY
SUNNY. HIGHS 54 TO 61.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
28 TO 35.
WEDNESDAY
MOSTLY SUNNY. HIGHS 58 TO 65.
WEDNESDAY NIGHT
CLOUDY WITH A CHANCE OF RAIN SHOWERS. LOWS
31 TO 39.
THURSDAY
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
HIGHS 56 TO 63.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 30 TO 37.
FRIDAY
SUNNY. HIGHS 61 TO 68.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 34 TO 41.
SATURDAY
SUNNY. HIGHS 68 TO 75.
SATURDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.
LOWS 38 TO 45.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 73 TO 81. LOWS
41 TO 48.
IDZ062-191000-
BLACKFOOT MOUNTAINS-
INCLUDING GRACE, SODA SPRINGS, HENRY, AND BONE
841 PM MDT MON MAY 18 2026
TONIGHT
MOSTLY CLEAR. COLDER. LOWS 22 TO 32.
TUESDAY
SUNNY. HIGHS 52 TO 59.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 28 TO 38.
WEDNESDAY
MOSTLY SUNNY. HIGHS 56 TO 64.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS.
LOWS 33 TO 43.
THURSDAY
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS.
HIGHS 55 TO 64.
THURSDAY NIGHT
PARTLY CLOUDY. LOWS 30 TO 40.
FRIDAY
SUNNY. HIGHS 58 TO 67.
FRIDAY NIGHT
PARTLY CLOUDY. LOWS 33 TO 43.
SATURDAY
SUNNY. HIGHS 64 TO 73.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 38 TO 48.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 69 TO 79. LOWS
42 TO 52.
IDZ060-191000-
BEAR RIVER RANGE-
INCLUDING EMIGRATION SUMMIT
841 PM MDT MON MAY 18 2026
TONIGHT
DECREASING CLOUDS. LOWS 28 TO 35.
TUESDAY
MOSTLY SUNNY. NOT AS COOL. HIGHS 50 TO 57.
TUESDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 43.
WEDNESDAY
MOSTLY SUNNY. HIGHS 55 TO 62.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS AND SNOW SHOWERS. LOWS 41 TO 48.
THURSDAY
RAIN SHOWERS, SNOW SHOWERS LIKELY AND A CHANCE OF
THUNDERSTORMS. HIGHS 55 TO 62.
THURSDAY NIGHT
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS. LOWS 37 TO 44.
FRIDAY
MOSTLY SUNNY. HIGHS 59 TO 66.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 41 TO 48. HIGHS
65 TO 72.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 45 TO 53.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 70 TO 79. LOWS
49 TO 56.
IDZ061-191000-
BEAR LAKE VALLEY-
INCLUDING ST. CHARLES, MONTPELIER, AND GEORGETOWN
841 PM MDT MON MAY 18 2026
TONIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN SHOWERS AND
SNOW SHOWERS IN THE EVENING...THEN PARTLY CLOUDY AFTER MIDNIGHT.
COLDER. LOWS 22 TO 32.
TUESDAY
MOSTLY SUNNY. NOT AS COOL. HIGHS 50 TO 57.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 26 TO 36.
WEDNESDAY
MOSTLY SUNNY. NOT AS COOL. HIGHS 56 TO 63.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN
SHOWERS. LOWS 32 TO 41.
THURSDAY
RAIN SHOWERS WITH POSSIBLE THUNDERSTORMS AND SNOW
SHOWERS. HIGHS 55 TO 62.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 29 TO 38. HIGHS
59 TO 66.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 32 TO 41. HIGHS
64 TO 73.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 36 TO 45.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 69 TO 79. LOWS
39 TO 47.
IDZ071-074-191000-
FRANK CHURCH WILDERNESS-BIG LOST HIGHLANDS/COPPER BASIN-
INCLUDING CLAYTON AND COPPER BASIN
841 PM MDT MON MAY 18 2026
TONIGHT
PARTLY CLOUDY. LOWS 25 TO 33.
TUESDAY
INCREASING CLOUDS. HIGHS 51 TO 61.
TUESDAY NIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS
27 TO 36.
WEDNESDAY
PARTLY SUNNY. HIGHS 52 TO 62.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS,
SNOW SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 28 TO 37.
THURSDAY
MOSTLY SUNNY WITH A CHANCE OF SNOW SHOWERS. HIGHS
57 TO 67.
THURSDAY NIGHT THROUGH FRIDAY NIGHT
PARTLY CLOUDY. LOWS 31 TO
41. HIGHS 60 TO 70.
SATURDAY
SUNNY. HIGHS 65 TO 75.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 37 TO 47.
SUNDAY AND SUNDAY NIGHT
MOSTLY CLEAR. HIGHS 68 TO 78. LOWS
38 TO 48.
MEMORIAL DAY
MOSTLY SUNNY. BREEZY. HIGHS 66 TO 76.
IDZ055-191000-
EASTERN MAGIC VALLEY-
INCLUDING BURLEY, RUPERT, HEYBURN, AND OAKLEY
841 PM MDT MON MAY 18 2026
...FROST ADVISORY REMAINS IN EFFECT FROM 3 AM TO 9 AM MDT
TUESDAY...
TONIGHT
PARTLY CLOUDY. LOWS 28 TO 38. NORTH WINDS AROUND
10 MPH...SHIFTING TO EAST UP TO 10 MPH AFTER MIDNIGHT.
TUESDAY...SUNNY. HIGHS 61 TO 68. EAST WINDS UP TO 10 MPH
SHIFTING TO WEST IN THE AFTERNOON.
TUESDAY NIGHT
MOSTLY CLEAR. LOWS 34 TO 44. SOUTHWEST WINDS
AROUND 10 MPH.
WEDNESDAY
SUNNY. HIGHS 65 TO 72. SOUTHWEST WINDS AROUND
10 MPH.
WEDNESDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS.
LOWS 38 TO 48. SOUTHWEST WINDS 10 TO 15 MPH. CHANCE OF
PRECIPITATION 30 PERCENT.
THURSDAY
PARTLY SUNNY WITH A CHANCE OF SHOWERS AND
THUNDERSTORMS. HIGHS 64 TO 71.
THURSDAY NIGHT AND FRIDAY
PARTLY CLOUDY. LOWS 36 TO 46. HIGHS
68 TO 75.
FRIDAY NIGHT AND SATURDAY
MOSTLY CLEAR. LOWS 39 TO 49. HIGHS
75 TO 82.
SATURDAY NIGHT
PARTLY CLOUDY. LOWS 43 TO 53.
SUNDAY THROUGH MEMORIAL DAY
MOSTLY CLEAR. HIGHS 78 TO 86. LOWS
46 TO 56.
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