Typical Weather in Missoula, MT in May
65° F Avg High
40° F Avg Low
7 Rainy Days
☀️ Temperature Summary
May is one of the warmer months of the year for Missoula, with highs averaging around 65°F. Lows overnight are typically around 40°F. Daily high temperatures can range between 61°F and 70°F, and will often rise as the month goes on.
May is a great time to visit Missoula, with mild temperatures and sunny days being very common.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In May you can expect close to a 22% chance of rain for any given day. It rains more than usual in May, with total rainfall for the month typically near 3 inches.
Rainfall Throughout the Year
Planning a trip to Missoula? Try our free trip weather planner