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Montana Weather


Weather in Montana is typically unpredictable, with unseasonal cold (or warm) conditions possible at any time of the year.

During winter (November throught March) temperatures can range from 50 degrees above zero to 50 below zero. High temperature averages generally run from 20 to 35 degrees, with mostly sunny skies.

Average summer highs approach 70 degrees southeast and east, with somewhat cooler conditions in the higher mountain elevations. Average lows are near the mid-20s.

Statewide, average annual rainfall is near 20 inches, while rainfall in the higher elevations of the Rockies (especially northwest) exceeds 80 inches, and snowfall is usually heavy.

For a look at Montana precipitation levels, especially in the mountains, view this map

Current Weather Conditions:
In these selected cities....

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Seasonal Temperature Averages:

HIGH TEMPERATURES ( Fahrenheit/Celsius )

(Jan) 29/-2 (Feb) 32/0 (Mar) 42/5 (Apr) 53/12

(May) 61/16 (Jun) 70/21 (Jul) 81/27 (Aug) 85/29

(Sep) 79/26 (Oct) 67/19 (Nov) 50/10 (Dec) 36/2

LOW TEMPERATURES ( Fahrenheit/Celsius )

(Jan) 10/-12 (Feb) 12/-11 (Mar) 20/-7 (Apr) 28/-2

(May) 38/3 (Jun) 45/7 (Jul) 51/10 (Aug) 52/11

(Sep) 48/9 (Oct) 38/3 (Nov) 28/-2 (Dec) 17/-8

Montana Photographs

Winter Camping with Snowshoes, East Glacier, Montana, USA

Winter camping in East Glacier, Montana...
by Chuck Haney
Buy This at Allposters.com

Montana Cities, Counties & Area Codes

City County Area Code
Dillon Beaverhead 406
Hardin Big Horn 406
Harlem Blaine 406
Townsend Broadwater 406
Red Lodge Carbon 406
Ekalaka Carter 406
Great Falls Cascade 406
Fort Benton Chouteau 406
Miles City Custer 406
Scobey Daniels 406
Glendive Dawson 406
Anaconda Deer Lodge 406
Baker Fallon 406
Lewistown Fergus 406
Kalispell Flathead 406
Bozeman Gallatin 406
Jordan Garfield 406
Browning Glacier 406
Ryegate Golden Valley 406
Philipsburg Granite 406
Havre Hill 406
Clancy Jefferson 406
Stanford Judith Basin 406
Polson Lake 406
Helena Lewis and Clark 406
Chester Liberty 406
Libby Lincoln 406
Ennis Madison 406
Circle McCone 406
White Sulphur Springs Meagher 406
Superior Mineral 406
Missoula Missoula 406
Roundup Musselshell 406
Livingston Park 406
Winnett Petroleum 406
Malta Phillips 406
Conrad Pondera 406
Broadus Powder River 406
Deer Lodge Powell 406
Terry Prairie 406
Hamilton Ravalli 406
Sidney Richland 406
Wolf Point Roosevelt 406
Lame Deer Rosebud 406
Plains Sanders 406
Plentywood Sheridan 406
Butte Silver Bow 406
Columbus Stillwater 406
Big Timber Sweet Grass 406
Choteau Teton 406
Shelby Toole 406
Hysham Treasure 406
Glasgow Valley 406
Harlowton Wheatland 406
Wibaux Wibaux 406
Billings Yellowstone 406

About the Author

John Moen is a cartographer who along with his wife are the orignal founders of worldatlas.com. He and his wife, Chris Woolwine-Moen, produced thousands of award-winning maps that are used all over the world and content that aids students, teachers, travelers and parents with their geography and map questions. Today, it's one of the most popular educational sites on the web.

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This page was last updated on July 10, 2020.