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Montana weather by month

One station — Bozeman speaks for the mountain valleys of southwest Montana, not for the plains that stretch east of the Rockies.

Based on 1 weather station, in Bozeman.

The year across Montana

Month Highs Nights Wet days
January 34° 15° 9
February 37° 17° 8
March 46° 24° 8
April 55° 31° 7
May 63° 39° 2
June 72° 46° 8
July 82° 52° 4
August 81° 50° 4
September 71° 42° 4
October 57° 32° 3
November 42° 22° 7
December 33° 15° 9

Bozeman & the Gallatin Valley