Olson Airport Weather Forecast

    • 47
    • 69

    Rain

    • 35
    • 52

    Rain

    • 35
    • 53

    Partly Sunny

    • 34
    • 52

    Mostly Cloudy

    • 35
    • 54

    Chance Rain/Snow

    • 34
    • 51

    Chance Rain

    • 32
    • 51

    Slight Chance Rain

Today 22 Oct Flathead/Mission Valleys

Partly cloudy with a 20 percent chance of rain and snow. Highs in the mid 40s to lower 50s.

Tonight 22 Oct Flathead/Mission Valleys

Partly cloudy early in the Evening, then mostly cloudy with Areas of rain in the late evening and early morning. Rain likely late in the night. Patchy fog after midnight. Chance of rain 70 percent. Lows in the mid 30s to lower 40s.

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Olson Airport Temperature Statistics

October Temperature

Missoula, Missoula International Airport (46 miles)

  • Lowest 15 October, 2026

    25.6 °F

  • Average October

    50.1 °F

  • Highest 5 October, 2026

    81.6 °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

    59.8 °F
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