Polson Bay Weather Forecast

    • 37
    • 70

    Decreasing Clouds

    • 40
    • 75

    Mostly Sunny

    • 44
    • 78

    Mostly Sunny

    • 41
    • 75

    Mostly Sunny

    • 41
    • 74

    Mostly Sunny

    • 42
    • 74

    Mostly Sunny

Today 3 Oct Flathead/Mission Valleys

Mostly cloudy with a 40 percent chance of rain. Highs in the mid 50s to lower 60s.

Tonight 3 Oct Flathead/Mission Valleys

Partly cloudy. Lows in the 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Polson Bay Temperature Statistics

October Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 1 October, 2026

    35.1 °F

  • Average October

    45.9 °F

  • Highest 1 October, 2026

    60.1 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (41.6 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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