Polson Bay Weather Forecast

    • 41
    • 64

    Mostly Cloudy

    • 43
    • 74

    Mostly Sunny

    • 37
    • 72

    Mostly Sunny

    • 42
    • 75

    Mostly Sunny

    • 42
    • 78

    Mostly Sunny

    • 38
    • 73

    Mostly Sunny

Today 1 Oct Flathead/Mission Valleys

Mostly cloudy with a 20 percent chance of rain Showers. Areas of fog early in the morning. Highs in the upper 50s to mid 60s.

Tonight 1 Oct Flathead/Mission Valleys

Mostly cloudy. Lows in the mid 30s to lower 40s.

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Polson Bay Temperature Statistics

October Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

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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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