Olson Airport Weather Forecast

    • 48
    • 66

    Partly Sunny

    • 44
    • 70

    Partly Sunny

    • 41
    • 60

    Mostly Sunny

    • 44
    • 64

    Mostly Cloudy

    • 43
    • 59

    Mostly Cloudy

    • 42
    • 58

    Partly Sunny

Today 16 Oct Flathead/Mission Valleys

Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s to mid 50s.

Tonight 16 Oct Flathead/Mission Valleys

Partly cloudy. Areas of frost after midnight. Lows in the 30s. Southwest Winds 15 to 20 Mph.

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Olson Airport Temperature Statistics

October Temperature

Missoula, Missoula International Airport (46 miles)

  • Lowest 14 October, 2026

    32 °F

  • Average October

    51.2 °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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