Current Weather and Forecast in Missoula, MT

Montana, United States 🇺🇸
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About the weather in Missoula

Missoula has a semi-arid climate. July is the warmest month, with average highs of 86°, and January the coldest, when nights fall to around 19°. May brings the most rain, on about 10 days, while July is the sunniest, with 14.2 hours of sunshine a day. Over a whole year it rains on roughly 104 days.

Missoula climate guide: monthly averages, seasons and the best time to visit

Common questions

When should I visit Missoula?
Aim for April to September if you get the choice: temperatures sit either side of the peak heat rather than in it, and highs average 73°F (23°C) against roughly 6 wet days a month. For the same question asked the other way round, see where else is warm in April.
When is Missoula at its coldest?
January, with highs of 35°F (2°C) and lows near 19°F (-7°C). The coldest day in the 2015-2024 record fell to -35°F (-37°C).
How often does it rain in Missoula?
About 104 days bring measurable precipitation, totalling 19.4 inches (494 mm). That works out at roughly 4.7 mm on an average wet day.
How much sun does Missoula get?
9.4 hours a day averaged over the year, peaking in July at 14.2 hours.
Does it snow in Missoula?
Yes - about 34 days a year carry measurable snowfall, concentrated October through April.
What is the rainiest month in Missoula?
May, at 2.2 inches (56 mm) over about 10 days. July is the driest month, at 12 mm (0.5 in).
What is the hottest month in Missoula?
July, averaging 86°F (30°C) by day and 59°F (15°C) overnight. The hottest single day in our 2015-2024 record for this location reached 103°F (40°C).