Skip to content

    Summer temperatures · Montana

    How hot does Missoula get in summer?

    Missoula right now

    32°FLight snow

    • Today35°F / 29°FClouds and snow
    • Tomorrow40°F / 26°FClouds
    • Monday48°F / 42°FRain
    Slippery, and very pleased with itself.

    Live from OpenWeatherMap. Alerts from the National Weather Service.

    In a typical summer, June to August, Missoula averages highs around 81°F and lows around 49°F.

    About 27 days a year reach 90°F or hotter, and about 2 reach 100°F. About 73 days a year get to 80°F or warmer. That makes it the 9th coolest summer of the 129 US cities we track.

    Last updated

    The hottest high in the forecast for the next 48 hours is about 44°F.

    Missoula reaches 90°F on about 27 days a year, but summer lows average about 49°F, so the river and the hoodie are equally essential.

    Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.

    Summer at a glance

    Average summer high81°F
    Average summer low49°F
    Days a year at 80°F or warmer73
    Days a year at 90°F or hotter27
    Days a year at 100°F or hotter2
    Average winter high, for comparison33°F

    Summer here is June to August. Counts are averages a year.

    Cities with about the same summer

    Every city’s summer, hottest first

    More about the weather here

    Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00024153.