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....
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