Olson Airport Weather Forecast

    • 17
    • 27

    Increasing Clouds

    • 21
    • 35

    Mostly Cloudy

    • 25
    • 39

    Mostly Cloudy

    • 27
    • 41

    Mostly Cloudy

    • 31
    • 43

    Mostly Cloudy

    • 29
    • 43

    Chance Rain/Snow

Today 28 Dec Flathead/Mission Valleys

Partly cloudy. Highs in the 20s.

Tonight 28 Dec Flathead/Mission Valleys

Partly cloudy. Lows 10 to 17.

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Olson Airport Temperature Statistics

December Temperature

Missoula, Missoula International Airport (46 miles)

  • Lowest 1 December, 2025

    17.1 °F

  • Average December

    36.1 °F

  • Highest 10 December, 2025

    55.9 °F

Climate (2020–Present)

Missoula, Missoula International Airport (46 miles)

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  • Average Low 2020–2025

    35.9 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    59.5 °F
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