511  
FPUS55 KPIH 180857  
ZFPPIH  
 
ZONE FORECAST PRODUCT FOR IDAHO  
NATIONAL WEATHER SERVICE POCATELLO ID  
257 AM MDT FRI SEP 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.  
 
IDZ072-182200-  
SAWTOOTH/STANLEY BASIN-  
INCLUDING STANLEY  
257 AM MDT FRI SEP 18 2026  
   
TODAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN A  
CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO  
65.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF RAIN AFTER  
MIDNIGHT. LOWS 35 TO 45.    
SATURDAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN  
A CHANCE OF RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE  
AFTERNOON. HIGHS 54 TO 64.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.  
LOWS 34 TO 44.    
SUNDAY
 
MOSTLY SUNNY. WARMER. HIGHS 62 TO 72.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS  
63 TO 73.    
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS 36 TO 46.    
TUESDAY
 
SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 63 TO 73.    
TUESDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 35 TO 45.  
HIGHS 65 TO 75.  
 

 
 
IDZ073-182200-  
SUN VALLEY REGION-  
INCLUDING KETCHUM, SUN VALLEY, AND GALENA  
257 AM MDT FRI SEP 18 2026  
   
TODAY...PARTLY SUNNY. A CHANCE OF RAIN IN THE MORNING
 
THEN A  
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 57 TO 67.    
TONIGHT
 
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF RAIN  
AFTER MIDNIGHT. COLDER. LOWS 34 TO 43.    
SATURDAY
 
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 65.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.  
LOWS 34 TO 44.    
SUNDAY
 
SUNNY. NOT AS COOL. HIGHS 61 TO 71.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 36 TO 46.    
MONDAY AND MONDAY NIGHT
 
PARTLY CLOUDY. HIGHS 63 TO 73. LOWS  
38 TO 48.    
TUESDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 64 TO  
74.    
TUESDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 38 TO 48.  
HIGHS 66 TO 76.  
 

 
 
IDZ052-053-182200-  
ARCO/MUD LAKE DESERT-UPPER SNAKE RIVER PLAIN-  
INCLUDING MUD LAKE, INL, CRATERS OF THE MOON NM,  
IDAHO FALLS, REXBURG, AND ST. ANTHONY  
257 AM MDT FRI SEP 18 2026  
   
TODAY...A SLIGHT CHANCE OF RAIN IN THE MORNING
 
THEN RAIN  
SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 64 TO 71. NORTHEAST WINDS AROUND 10 MPH...SHIFTING TO SOUTH  
IN THE AFTERNOON.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE  
OF THUNDERSTORMS AFTER MIDNIGHT. LOWS 41 TO 48. EAST WINDS UP TO  
10 MPH. CHANCE OF PRECIPITATION 70 PERCENT.    
SATURDAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN  
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 58 TO 65. SOUTHWEST WINDS UP TO 10 MPH.  
CHANCE OF PRECIPITATION 50 PERCENT.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.  
LOWS 39 TO 46. WEST WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION  
20 PERCENT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS 63 TO 71. LIGHT AND VARIABLE WINDS.   
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 40 TO 47. HIGHS  
68 TO 75.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 41 TO  
49. HIGHS 70 TO 77.    
WEDNESDAY
 
SUNNY. HIGHS 70 TO 77.    
WEDNESDAY NIGHT AND THURSDAY
 
MOSTLY CLEAR. LOWS 41 TO 50.  
HIGHS 72 TO 79.  
 

 
 
IDZ051-182200-  
SHOSHONE/LAVA BEDS-  
INCLUDING SHOSHONE, RICHFIELD, AND CAREY  
257 AM MDT FRI SEP 18 2026  
   
TODAY...MOSTLY SUNNY. A SLIGHT CHANCE OF RAIN IN THE MORNING
 
 
THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. COOLER. HIGHS 64 TO 71. EAST  
WINDS UP TO 10 MPH...SHIFTING TO SOUTHWEST IN THE AFTERNOON.    
TONIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING...THEN A SLIGHT CHANCE OF RAIN AFTER  
MIDNIGHT. LOWS 40 TO 47. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF  
PRECIPITATION 20 PERCENT.    
SATURDAY
 
PARTLY SUNNY. A SLIGHT CHANCE OF RAIN IN THE MORNING.  
HIGHS 61 TO 68. SOUTHWEST WINDS UP TO 10 MPH. CHANCE OF  
PRECIPITATION 20 PERCENT.    
SATURDAY NIGHT
 
PARTLY CLOUDY. LOWS 39 TO 46. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY
 
SUNNY, WARMER. HIGHS 68 TO 75. EAST WINDS UP TO 10 MPH.   
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 42 TO 49. HIGHS  
71 TO 78.    
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS 43 TO 50.    
TUESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 73 TO 83. LOWS  
43 TO 51.  
 

 
 
IDZ056-057-182200-  
SOUTHERN HILLS/ALBION MOUNTAINS-RAFT RIVER REGION-  
INCLUDING ALBION, ALMO, MALTA, ROCKLAND,  
AND HOLBROOK  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS 62 TO 71. SOUTHEAST WINDS UP TO 10 MPH...  
SHIFTING TO SOUTHWEST IN THE AFTERNOON.    
TONIGHT
 
PARTLY CLOUDY. A CHANCE OF SHOWERS AND THUNDERSTORMS  
IN THE EVENING. COLDER. LOWS 38 TO 48. WEST WINDS UP TO 10 MPH.    
SATURDAY
 
PARTLY SUNNY. A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 59 TO 66. WEST WINDS UP TO  
10 MPH.    
SATURDAY NIGHT
 
PARTLY CLOUDY. LOWS 38 TO 48. SOUTHWEST WINDS  
UP TO 10 MPH.    
SUNDAY
 
SUNNY, WARMER. HIGHS 66 TO 73. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 42 TO 52.    
MONDAY AND MONDAY NIGHT
 
PARTLY CLOUDY. HIGHS 71 TO 78. LOWS  
45 TO 54.    
TUESDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS. HIGHS 71 TO 78.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 43 TO 53.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 73 TO 82. LOWS  
44 TO 54.  
 

 
 
IDZ058-059-182200-  
MARSH AND ARBON HIGHLANDS-FRANKLIN/EASTERN ONEIDA REGION-  
INCLUDING INKOM, MCCAMMON, DOWNEY,  
LAVA HOT SPRINGS, MALAD, PRESTON, AND THATCHER  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS AND A CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 63 TO 73.    
TONIGHT
 
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. COLDER. LOWS  
40 TO 49.    
SATURDAY
 
PARTLY SUNNY. A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS 55 TO 65.    
SATURDAY NIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF RAIN.  
LOWS 37 TO 47.    
SUNDAY
 
SUNNY, WARMER. HIGHS 61 TO 71.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 39 TO 49. HIGHS  
66 TO 76.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 42 TO  
52. HIGHS 67 TO 77.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 70 TO 80. LOWS  
42 TO 52.  
 

 
 
IDZ054-182200-  
LOWER SNAKE RIVER PLAIN-  
INCLUDING POCATELLO, BLACKFOOT, AMERICAN FALLS,  
SHELLEY, AND FORT HALL  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS  
IN THE AFTERNOON. HIGHS 66 TO 73. NORTHEAST WINDS UP TO 10 MPH...  
SHIFTING TO SOUTH AROUND 10 MPH IN THE AFTERNOON.    
TONIGHT
 
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. COLDER. LOWS 41 TO 50.  
SOUTH WINDS UP TO 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SATURDAY
 
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 60 TO 67. SOUTHWEST WINDS  
AROUND 10 MPH. CHANCE OF PRECIPITATION 50 PERCENT.    
SATURDAY NIGHT
 
PARTLY CLOUDY. LOWS 39 TO 48. SOUTHWEST WINDS  
UP TO 10 MPH.    
SUNDAY
 
MOSTLY SUNNY. WARMER. HIGHS 67 TO 74. LIGHT AND  
VARIABLE WINDS.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 40 TO 49. HIGHS  
71 TO 78.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 42 TO  
51. HIGHS 72 TO 79.    
WEDNESDAY
 
SUNNY. HIGHS 73 TO 80.    
WEDNESDAY NIGHT AND THURSDAY
 
MOSTLY CLEAR. LOWS 42 TO 52.  
HIGHS 75 TO 82.  
 

 
 
IDZ075-182200-  
WOOD RIVER FOOTHILLS-  
INCLUDING HAILEY, BELLEVUE, AND PICABO  
257 AM MDT FRI SEP 18 2026  
   
TODAY...PARTLY SUNNY. A CHANCE OF RAIN IN THE MORNING
 
THEN A  
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 58 TO 68. NORTH WINDS UP TO 10 MPH...  
SHIFTING TO SOUTH AROUND 10 MPH IN THE AFTERNOON.    
TONIGHT
 
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE EVENING...THEN A CHANCE OF RAIN  
AFTER MIDNIGHT. COLDER. LOWS 38 TO 46. NORTHWEST WINDS UP TO  
10 MPH IN THE EVENING...BECOMING LIGHT AND VARIABLE.    
SATURDAY
 
PARTLY SUNNY. A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 65. LIGHT AND  
VARIABLE WINDS...BECOMING SOUTHWEST UP TO 10 MPH IN THE  
AFTERNOON.    
SATURDAY NIGHT
 
PARTLY CLOUDY. LOWS 37 TO 46. NORTH WINDS UP TO  
10 MPH.    
SUNDAY
 
SUNNY, WARMER. HIGHS 61 TO 71. EAST WINDS UP TO 10 MPH.   
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 40 TO 48.    
MONDAY THROUGH TUESDAY
 
PARTLY CLOUDY. HIGHS 65 TO 75. LOWS  
41 TO 50.    
TUESDAY NIGHT
 
MOSTLY CLEAR. LOWS 40 TO 50.    
WEDNESDAY
 
SUNNY. HIGHS 67 TO 77.    
WEDNESDAY NIGHT AND THURSDAY
 
MOSTLY CLEAR. LOWS 41 TO 50.  
HIGHS 69 TO 79.  
 

 
 
IDZ069-182200-  
LOST RIVER RANGE-  
INCLUDING BORAH PEAK  
257 AM MDT FRI SEP 18 2026  
   
TODAY...A CHANCE OF RAIN IN THE MORNING
 
THEN RAIN SHOWERS  
LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
57 TO 66.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. COLDER. LOWS 42 TO 49.    
SATURDAY...A CHANCE OF RAIN IN THE MORNING
 
THEN RAIN SHOWERS  
LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 52 TO 60.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 40 TO  
47.    
SUNDAY
 
MOSTLY SUNNY. NOT AS COOL. HIGHS 59 TO 68.    
SUNDAY NIGHT
 
MOSTLY CLEAR. LOWS 41 TO 48.    
MONDAY AND MONDAY NIGHT
 
PARTLY CLOUDY. HIGHS 61 TO 71. LOWS  
43 TO 50.    
TUESDAY AND TUESDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF  
RAIN. HIGHS 63 TO 73. LOWS 42 TO 49.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 65 TO 75. LOWS  
43 TO 50.  
 

 
 
IDZ063-064-182200-  
CARIBOU RANGE-BIG HOLE MOUNTAINS-  
INCLUDING WAYAN, SWAN VALLEY, AND VICTOR  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS AND A SLIGHT  
CHANCE OF THUNDERSTORMS IN THE MORNING...THEN A CHANCE OF SHOWERS  
AND THUNDERSTORMS IN THE AFTERNOON. HIGHS 64 TO 71.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE  
OF THUNDERSTORMS AFTER MIDNIGHT. COLDER. LOWS 39 TO 47.    
SATURDAY
 
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS LIKELY AND A  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS 55 TO 62.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 35 TO 45.    
SUNDAY
 
PARTLY SUNNY. HIGHS 59 TO 66.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS  
66 TO 73.    
MONDAY NIGHT AND TUESDAY
 
PARTLY CLOUDY. LOWS 38 TO 48. HIGHS  
67 TO 75.    
TUESDAY NIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS. LOWS 38 TO 48.    
WEDNESDAY
 
SUNNY. HIGHS 68 TO 75.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 38 TO 48.    
THURSDAY
 
SUNNY. HIGHS 70 TO 78.  
 

 
 
IDZ068-070-182200-  
LOST RIVER VALLEY-CHALLIS/PAHSIMEROI VALLEYS-  
INCLUDING HOWE, ARCO, MACKAY, CHILLY, AND CHALLIS  
257 AM MDT FRI SEP 18 2026  
   
TODAY...PARTLY SUNNY. A CHANCE OF RAIN IN THE MORNING
 
THEN A  
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 59 TO 69. LIGHT AND VARIABLE WINDS...  
BECOMING SOUTHEAST UP TO 10 MPH IN THE AFTERNOON.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN RAIN SHOWERS LIKELY AND A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. LOWS 39 TO 48. NORTHWEST WINDS UP  
TO 10 MPH IN THE EVENING...BECOMING LIGHT AND VARIABLE.    
SATURDAY...A CHANCE OF RAIN IN THE MORNING
 
THEN RAIN SHOWERS  
LIKELY AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 55 TO 65. LIGHT AND VARIABLE WINDS...BECOMING NORTH UP TO  
10 MPH IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 38 TO  
47. LIGHT AND VARIABLE WINDS.    
SUNDAY
 
MOSTLY SUNNY. WARMER. HIGHS 62 TO 72. LIGHT AND  
VARIABLE WINDS.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 39 TO 48. HIGHS  
65 TO 75.    
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS 41 TO 49.    
TUESDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 66 TO  
76.    
TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 41 TO 49.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 68 TO 78. LOWS  
41 TO 49.  
 

 
 
IDZ066-067-182200-  
CENTENNIAL MOUNTAINS - ISLAND PARK-BEAVERHEAD - LEMHI HIGHLANDS-  
INCLUDING ISLAND PARK, KILGORE, DUBOIS, SPENCER,  
EDIE SCHOOL, AND SMALL  
257 AM MDT FRI SEP 18 2026  
   
TODAY...A CHANCE OF RAIN IN THE MORNING
 
THEN RAIN SHOWERS  
LIKELY AND A CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS  
60 TO 70.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS AFTER MIDNIGHT. COLDER. LOWS 38 TO 47.    
SATURDAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN  
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 54 TO 61.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 36 TO 46.    
SUNDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 60 TO  
67.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS  
63 TO 71.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 37 TO  
47. HIGHS 66 TO 73.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 66 TO 75. LOWS  
37 TO 47.  
 

 
 
IDZ065-182200-  
TETON VALLEY-  
INCLUDING ASHTON, TETONIA, AND DRIGGS  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS AND A CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 69.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE  
OF THUNDERSTORMS AFTER MIDNIGHT. LOWS 40 TO 47.    
SATURDAY...RAIN LIKELY IN THE MORNING
 
THEN A CHANCE OF RAIN  
SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN THE AFTERNOON.  
HIGHS 56 TO 63.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 37 TO 44.    
SUNDAY
 
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 60 TO  
67.    
SUNDAY NIGHT
 
PARTLY CLOUDY. LOWS 37 TO 44.    
MONDAY
 
SUNNY. HIGHS 66 TO 73.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 38 TO  
47. HIGHS AROUND 72.    
WEDNESDAY
 
SUNNY. HIGHS AROUND 72.    
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS 39 TO 46.    
THURSDAY
 
SUNNY. HIGHS AROUND 74.  
 

 
 
IDZ062-182200-  
BLACKFOOT MOUNTAINS-  
INCLUDING GRACE, SODA SPRINGS, HENRY, AND BONE  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
A CHANCE OF RAIN AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE MORNING...THEN RAIN SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 63 TO 70.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE  
OF THUNDERSTORMS AFTER MIDNIGHT. COLDER. LOWS 39 TO 48.    
SATURDAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN  
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 54 TO 63.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 36 TO 46.    
SUNDAY
 
MOSTLY SUNNY. WARMER. HIGHS 59 TO 68.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS  
65 TO 73.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 40 TO  
50. HIGHS 67 TO 75.    
WEDNESDAY AND WEDNESDAY NIGHT
 
MOSTLY CLEAR. HIGHS 67 TO 76.  
LOWS 40 TO 50.    
THURSDAY
 
SUNNY. HIGHS 69 TO 78.  
 

 
 
IDZ060-182200-  
BEAR RIVER RANGE-  
INCLUDING EMIGRATION SUMMIT  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS AND A CHANCE OF  
THUNDERSTORMS IN THE AFTERNOON. HIGHS 64 TO 71.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A CHANCE OF THUNDERSTORMS IN  
THE EVENING...THEN A SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS  
AFTER MIDNIGHT. COLDER. LOWS 45 TO 52.    
SATURDAY
 
PARTLY SUNNY. A SLIGHT CHANCE OF RAIN IN THE  
MORNING...THEN A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE  
AFTERNOON. HIGHS 56 TO 63.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 42 TO 49.    
SUNDAY
 
MOSTLY SUNNY. HIGHS 60 TO 67.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 45 TO 52. HIGHS  
66 TO 73.    
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS 48 TO 55.    
TUESDAY AND TUESDAY NIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS. HIGHS 67 TO 74. LOWS 48 TO 55.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 68 TO 77. LOWS  
48 TO 55.  
 

 
 
IDZ061-182200-  
BEAR LAKE VALLEY-  
INCLUDING ST. CHARLES, MONTPELIER, AND GEORGETOWN  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF  
THUNDERSTORMS IN THE MORNING...THEN RAIN SHOWERS LIKELY AND A  
CHANCE OF THUNDERSTORMS IN THE AFTERNOON. HIGHS AROUND 68.    
TONIGHT
 
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 38 TO  
48.    
SATURDAY...PARTLY SUNNY. A CHANCE OF RAIN IN THE MORNING
 
THEN  
A CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. HIGHS  
57 TO 64.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN SHOWERS AND  
A SLIGHT CHANCE OF THUNDERSTORMS. LOWS 34 TO 44.    
SUNDAY
 
MOSTLY SUNNY. HIGHS AROUND 65.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 35 TO 45. HIGHS  
AROUND 70.    
MONDAY NIGHT AND TUESDAY
 
PARTLY CLOUDY. LOWS 38 TO 48. HIGHS  
AROUND 71.    
TUESDAY NIGHT
 
PARTLY CLOUDY WITH A SLIGHT CHANCE OF SHOWERS  
AND THUNDERSTORMS. LOWS 38 TO 48.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 70 TO 77. LOWS  
38 TO 48.  
 

 
 
IDZ071-074-182200-  
FRANK CHURCH WILDERNESS-BIG LOST HIGHLANDS/COPPER BASIN-  
INCLUDING CLAYTON AND COPPER BASIN  
257 AM MDT FRI SEP 18 2026  
   
TODAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN A  
CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 56 TO 66.    
TONIGHT
 
RAIN SHOWERS LIKELY AND A SLIGHT CHANCE OF  
THUNDERSTORMS. COLDER. LOWS 37 TO 47.    
SATURDAY...MOSTLY CLOUDY. A CHANCE OF RAIN IN THE MORNING
 
THEN  
A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 54 TO 64.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF RAIN. LOWS 36 TO  
46.    
SUNDAY
 
MOSTLY SUNNY. WARMER. HIGHS 62 TO 72.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 37 TO 47. HIGHS  
64 TO 74.    
MONDAY NIGHT
 
PARTLY CLOUDY. LOWS 39 TO 49.    
TUESDAY
 
MOSTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS 64 TO  
74.    
TUESDAY NIGHT THROUGH THURSDAY
 
MOSTLY CLEAR. LOWS 38 TO 48.  
HIGHS 66 TO 76.  
 

 
 
IDZ055-182200-  
EASTERN MAGIC VALLEY-  
INCLUDING BURLEY, RUPERT, HEYBURN, AND OAKLEY  
257 AM MDT FRI SEP 18 2026  
   
TODAY
 
MOSTLY SUNNY. A CHANCE OF SHOWERS AND THUNDERSTORMS IN  
THE AFTERNOON. HIGHS 65 TO 72. EAST WINDS UP TO 10 MPH...SHIFTING  
TO WEST IN THE AFTERNOON.    
TONIGHT
 
PARTLY CLOUDY. A SLIGHT CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE EVENING. LOWS 41 TO 49. SOUTHWEST WINDS  
AROUND 10 MPH. CHANCE OF PRECIPITATION 20 PERCENT.    
SATURDAY
 
PARTLY SUNNY WITH A SLIGHT CHANCE OF RAIN. HIGHS  
61 TO 68. SOUTHWEST WINDS 10 TO 15 MPH. CHANCE OF PRECIPITATION  
20 PERCENT.    
SATURDAY NIGHT
 
PARTLY CLOUDY. LOWS 40 TO 49. SOUTH WINDS UP TO  
10 MPH.    
SUNDAY
 
SUNNY, WARMER. HIGHS 68 TO 75. LIGHT AND VARIABLE  
WINDS.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLEAR. LOWS 43 TO 51. HIGHS  
72 TO 79.    
MONDAY NIGHT THROUGH TUESDAY NIGHT
 
PARTLY CLOUDY. LOWS 44 TO  
54. HIGHS 73 TO 80.    
WEDNESDAY THROUGH THURSDAY
 
MOSTLY CLEAR. HIGHS 75 TO 84. LOWS  
44 TO 54.  
 

 
 
WEATHER INFORMATION ON-LINE 24-HOURS A DAY  
WWW.WEATHER.GOV/POCATELLO  
 
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