Idaho weather in October: Statewide normals and every place, NOAA 1991-2020
In October, Idaho's statewide normal high is 56°F and normal low 32°F; normal highs run from 44°F in Mullan to 71°F in Glenns Ferry (NOAA 1991-2020 normals).
- Statewide normal high
- 56°FOctober, 1991-2020
- Statewide normal low
- 32°FOctober, 1991-2020
- Statewide normal precipitation
- 1.86 inOctober
- Warmest place
- 71°Fnormal high, Glenns Ferry
- Coolest place
- 44°Fnormal high, Mullan
Where is Idaho warmest and wettest in October?
Glenns Ferry has the warmest October afternoons (71°F) and Mullan the coolest (44°F). Mullan gets the most precipitation (3.89 in) and Grand View the least (0.44 in). The most snow falls in Elk City (1.9 inches).
Statewide, October averaged 45.2°F in 2021, 48.0°F in 2022, 45.9°F in 2023, 48.3°F in 2024, 43.9°F in 2025, against a 1991-2020 normal of 44.2°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Boise | 65°F | 42°F | 0.81 | 0.1 |
| Nampa | 67°F | 37°F | 0.80 | 0.0 |
| Idaho Falls | 59°F | 31°F | 0.88 | – |
| Pocatello | 62°F | 33°F | 0.99 | 1.2 |
| Coeur d'Alene | 58°F | 39°F | 2.02 | – |
| Twin Falls | 62°F | 36°F | 0.77 | – |
| Rexburg | 57°F | 32°F | 1.03 | – |
| Lewiston | 63°F | 42°F | 1.08 | 0.0 |
| Moscow | 61°F | 33°F | 2.40 | 0.2 |
| Mountain Home | 67°F | 37°F | – | – |
| Jerome | 63°F | 39°F | 0.77 | – |
| Blackfoot | 61°F | 35°F | 1.12 | 0.8 |
| Burley | 63°F | 36°F | 0.80 | – |
| Sandpoint | 56°F | 34°F | 2.95 | 0.0 |
| Emmett | 65°F | 38°F | 0.90 | 0.0 |
| Payette | 67°F | 39°F | 0.63 | – |
| Preston | 63°F | 33°F | 1.59 | 0.8 |
| Weiser | 65°F | 38°F | 0.83 | – |
| Rigby | 60°F | 35°F | 1.19 | – |
| American Falls | 61°F | 36°F | 0.92 | – |
| Buhl | 63°F | 38°F | 0.88 | – |
| McCall | 56°F | 29°F | 1.60 | – |
| St. Anthony | 58°F | 32°F | 1.29 | – |
| Grangeville | 58°F | 37°F | 1.93 | 0.6 |
| Ketchum | 56°F | 28°F | 1.40 | 1.6 |
| Salmon | 58°F | 31°F | 0.81 | 0.1 |
| Soda Springs | 60°F | 27°F | 1.05 | – |
| Homedale | 66°F | 36°F | 0.75 | – |
| Bonners Ferry | 56°F | 36°F | 1.73 | 0.2 |
| Bellevue | 61°F | 35°F | 1.75 | – |
| St. Maries | 59°F | 36°F | 2.42 | 0.2 |
| Kellogg | 58°F | 33°F | 3.11 | 0.0 |
| Sugar City | 59°F | 29°F | – | – |
| Fort Hall | 60°F | 31°F | 0.90 | 0.9 |
| Driggs | 58°F | 29°F | 1.77 | – |
| Malad City | 63°F | 32°F | 1.15 | – |
| Parma | 66°F | 36°F | 0.73 | 0.0 |
| Aberdeen | 61°F | 30°F | 0.90 | 0.5 |
| Shoshone | 66°F | 40°F | 0.76 | – |
| Paul | 59°F | 35°F | 0.85 | – |
| Glenns Ferry | 71°F | 36°F | 0.98 | – |
| Kamiah | 62°F | 38°F | 1.89 | 0.0 |
| Plummer | 57°F | 36°F | 2.50 | – |
| Cascade | 58°F | 31°F | 1.71 | 0.9 |
| Hagerman | 66°F | 35°F | 0.73 | – |
| Ashton | 57°F | 32°F | 1.63 | 1.6 |
| Council | 64°F | 35°F | 1.61 | – |
| Grace | 59°F | 32°F | 1.40 | – |
| Challis | 59°F | 32°F | 0.56 | – |
| Cottonwood | 57°F | 39°F | 1.77 | 0.4 |
| Arco | 60°F | 31°F | 0.71 | 0.3 |
| Oakley | 64°F | 37°F | 0.88 | 0.6 |
| Hazelton | 63°F | 34°F | 0.96 | – |
| McCammon | 61°F | 32°F | 1.15 | 0.6 |
| Wallace | 55°F | 36°F | 3.38 | 0.4 |
| Potlatch | 59°F | 35°F | 2.16 | 0.2 |
| Mullan | 44°F | 32°F | 3.89 | – |
| New Meadows | 59°F | 25°F | 1.83 | – |
| Downey | 62°F | 31°F | 1.31 | – |
| Kooskia | 62°F | 37°F | – | – |
| Idaho City | 62°F | 28°F | 1.50 | – |
| Dubois | 58°F | 34°F | 1.09 | 1.4 |
| Pierce | 58°F | 30°F | 3.42 | 0.4 |
| Fairfield | 59°F | 30°F | 0.97 | – |
| Mackay | 58°F | 31°F | 0.84 | – |
| Richfield | 62°F | 32°F | 0.87 | 0.1 |
| Nezperce | 57°F | 34°F | 1.53 | 0.1 |
| Grand View | 68°F | 37°F | 0.44 | – |
| Riggins | 64°F | 36°F | 1.48 | 0.0 |
| Lava Hot Springs | 60°F | 32°F | 1.40 | – |
| Winchester | 56°F | 35°F | 1.84 | 1.1 |
| Cambridge | 63°F | 34°F | 1.30 | – |
| Garden Valley | 64°F | 31°F | 1.73 | 0.3 |
| Swan Valley | 59°F | 29°F | 1.81 | – |
| Tetonia | 54°F | 28°F | 1.61 | – |
| Elk City | 58°F | 28°F | 2.60 | 1.9 |
| Castleford | 62°F | 35°F | 0.78 | – |
| Island Park | 51°F | 24°F | 2.09 | – |
| Malta | 63°F | 31°F | 0.82 | 0.0 |
| Stanley | 55°F | 24°F | 1.59 | – |
| Leadore | 55°F | 25°F | – | – |
| Minidoka | 64°F | 34°F | 0.78 | 0.7 |
| Hamer | 62°F | 28°F | 0.73 | 0.1 |
| Lowman | 61°F | 28°F | – | – |
| Bruneau | 70°F | 40°F | 0.62 | – |
| Arrowrock Dam | 65°F | 38°F | – | – |
| Bayview Model Basin | 54°F | 33°F | 2.16 | 0.0 |
| Bern | 59°F | 27°F | 1.70 | 2.9 |
| Boise Lucky Peak Dam | 67°F | 41°F | 1.01 | – |
| Brownlee Dam | 66°F | 45°F | 1.10 | – |
| Cabinet Gorge | 55°F | 36°F | 3.15 | – |
| Chilly Barton Flat | 57°F | 28°F | 0.80 | 0.9 |
| Craters Of The Moon | 54°F | 27°F | 1.29 | 2.0 |
| Deadwood Lodge | 57°F | 26°F | 2.96 | – |
| Deer Flat Dam | 66°F | 39°F | 0.75 | – |
| Dixie | 52°F | 23°F | – | – |
| Dixie N | 52°F | 24°F | 2.27 | – |
| Dworshak Fish Hatchery | 63°F | 39°F | 2.10 | 0.0 |
| Elk River | 56°F | 33°F | 3.39 | – |
| Fenn Ranger Station | 61°F | 38°F | 3.13 | 0.0 |
| Gibbonsville #2 | 58°F | 30°F | – | – |
| Headquarters | 56°F | 28°F | 3.42 | 0.2 |
| Hill City (1 mi W) | 61°F | 28°F | 1.05 | – |
| Howe | 60°F | 30°F | 0.62 | 0.1 |
| Idaho Falls (46 mi W) | 60°F | 27°F | 0.72 | 0.4 |
| Idaho Falls - Kifi | 59°F | 35°F | 1.23 | – |
| Lifton Pumping Station | 56°F | 30°F | 1.10 | 1.1 |
| Lowell Three Rivers | 61°F | 40°F | 3.58 | – |
| Massacre Rocks State Park | 62°F | 34°F | 1.07 | – |
| May (2 mi SSE) | 60°F | 25°F | 0.93 | – |
| Middle Fork Lodge | 61°F | 31°F | 1.27 | 1.0 |
| Monteview | 58°F | 27°F | 0.98 | – |
| Murphy (10 mi W) | 62°F | 34°F | 0.74 | – |
| Murphy (Desert) Hot Springs | 62°F | 29°F | 1.00 | 0.5 |
| Ola | 65°F | 30°F | 1.63 | – |
| Picabo | 61°F | 27°F | 1.15 | 0.3 |
| Porthill (1 mi SW) | 58°F | 33°F | 1.80 | – |
| Powell | 54°F | 30°F | – | – |
| Prichard (3 mi ESE) | 55°F | 32°F | 3.62 | – |
| Priest River Experiment Station | 54°F | 32°F | 2.89 | 0.2 |
| Red River Ranger Station | 56°F | 27°F | – | – |
| Rexburg BYU Idaho | 58°F | 33°F | 1.13 | – |
| Shoup | 60°F | 35°F | – | – |
| Silver City (5 mi W) | 57°F | 38°F | – | – |
| Small (6 mi N) | 55°F | 30°F | 0.97 | – |
| Swan Falls Powerhouse | 68°F | 42°F | 0.58 | – |
| Taylor Ranch | 58°F | 33°F | 1.36 | 0.2 |
| Twin Falls-KMVT | 67°F | 37°F | 0.70 | – |
| Warren | 56°F | 23°F | – | – |
| Yellowpine | 59°F | 30°F | 2.05 | – |
| Yellowpine Bar | 62°F | 35°F | 1.91 | 0.0 |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.