Olson Airport Weather Forecast

    • 45
    • 75

    Mostly Sunny

    • 52
    • 75

    Mostly Cloudy

    • 47
    • 72

    Chance Rain

    • 36
    • 55

    Chance Rain/Snow

    • 31
    • 47

    Slight Chance Snow

    • 33
    • 49

    Partly Sunny

Today 7 Oct Flathead/Mission Valleys

Mostly cloudy with a 30 percent chance of rain. Highs in the 50s.

Tonight 7 Oct Flathead/Mission Valleys

Mostly clear. Lows in the 30s to lower 40s.

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Olson Airport Temperature Statistics

October Temperature

Missoula, Missoula International Airport (46 miles)

  • Lowest 4 October, 2026

    37.9 °F

  • Average October

    56.6 °F

  • Highest 5 October, 2026

    80.1 °F

Climate (2021–2026)

Missoula, Missoula International Airport (46 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.7 °F
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