Big Sky Park Weather Forecast

    • 36
    • 69

    Partly Sunny

    • 34
    • 65

    Partly Sunny

    • 39
    • 69

    Partly Sunny

    • 36
    • 65

    Rain

    • 25
    • 46

    Chance Rain

    • 26
    • 49

    Mostly Cloudy

Today 19 Oct Missoula/Bitterroot Valleys

Partly cloudy. Highs in the mid to upper 60s.

Tonight 19 Oct Missoula/Bitterroot Valleys

Partly cloudy in the evening then becoming mostly cloudy. Lows in the mid to upper 30s.

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  • Temperature Real-Time

Big Sky Park Temperature Statistics

October Temperature

Missoula, Missoula International Airport (4.3 miles)

  • Lowest 15 October, 2026

    26.1 °F

  • Average October

    50.2 °F

  • Highest 5 October, 2026

    81.6 °F

Climate (2021–2026)

Missoula, Missoula International Airport (4.3 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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