2021 Long Range Weather Forecast for Missoula, MT
See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.
To see long term forecasts for the entire year, pick up a copy of The 2021 Old Farmer’s Almanac, available online and in stores.
Note: Long range forecasts are regional, not city-specific.
Free 2-Month Weather Forecast
| Dates | Weather Conditions |
|---|---|
| May 1-10 | Rain, then sunny, turning warm |
| May 11-17 | Rainy periods, cool |
| May 18-20 | Sunny, warm |
| May 21-25 | Rainy periods, cool north; sunny, warm south |
| May 26-31 | Sunny, warm |
| May | temperature 58° (1° below avg. north, 3° above south) precipitation 1" (avg.) |
| Dates | Weather Conditions |
|---|---|
| Jun 1-9 | Rainy periods, cool |
| Jun 10-14 | Sunny, warm |
| Jun 15-20 | Showers, then sunny, cool |
| Jun 21-30 | Isolated t-storms, turning hot |
| June | temperature 65° (1° below avg.) precipitation 0.3" (0.2" below avg.) |
Annual Weather Summary
November 2020 to October 2021
November 2020 to October 2021
Winter temperatures and precipitation will be slightly below normal, on average. The coldest periods will be in early to mid-December, late January, and late February. Snowfall will be near normal, with the snowiest periods in early and late December, late January, and late February. April and May temperatures will be below normal in the north and above normal in the south, with near-normal precipitation. Summer temperatures will be cooler than normal in the north and above normal in the south, and it will be slightly rainier than normal. The hottest periods will be in late June, mid-July, and mid- to late August. September and October will be warmer than normal, with near-normal precipitation.
About the Intermountain Region
The Intermountain long range weather region includes all or part of the following states: ARIZONA (Flagstaff), COLORADO (Clifton, Grand Junction, Montrose), IDAHO (Boise, Idaho Falls, Meridian, Nampa, Pocatello), MONTANA (Bozeman, Butte, Helena, Kalispell, Missoula), NEVADA (Carson City, Elko, Reno, Sparks, Sun Valley), OREGON (Hermiston, La Grande, Ontario, Pendleton, The Dalles), UTAH (Orem, Provo, Salt Lake City, Sandy City, West Valley City), WASHINGTON (Kennewick, Pasco, Richland, Spokane, Yakima), WYOMING (Evanston, Green River, Laramie, Rock Springs).
Intermountain Neighboring Regions
Here are the regions that neighbor the Intermountain long range weather region:
Temperature and Precipitation November 2020 to October 2021
