Montana weather in May
One place stands in for Montana here — these are Bozeman's numbers, not a statewide average.
Based on 1 weather station, in Bozeman. One station — Bozeman speaks for the mountain valleys of southwest Montana, not for the plains that stretch east of the Rockies.
Bozeman & the Gallatin Valley
Highs near 63°, nights around 39°, and 3.6 in of snow in a typical May.
| Place | Highs / lows | Wet days | Snow | The short version |
|---|---|---|---|---|
| Bozeman | 63° / 39° | 2 | 3.6 in | Everything comes up at once, and so does the rain. |
Each place above has its own page for the full story — what the month feels like, what to pack, and whether the timing is right.