Polson Bay Weather Forecast

    • 31
    • 49

    Decreasing Clouds

    • 31
    • 52

    Mostly Cloudy

    • 29
    • 47

    Rain Likely

    • 27
    • 48

    Partly Sunny

    • 29
    • 49

    Mostly Cloudy

    • 29
    • 51

    Partly Sunny

    • 31
    • 52

    Mostly Cloudy

Today 30 Oct Flathead/Mission Valleys

Mostly cloudy with a slight chance of rain. Slight chance of snow in the morning. Chance of precipitation 20 percent. Highs in the upper 40s to mid 50s.

Tonight 30 Oct Flathead/Mission Valleys

Mostly cloudy. Patchy fog after midnight. Lows in the mid 20s to lower 30s.

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Polson Bay Temperature Statistics

October Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 13 October, 2026

    21.7 °F

  • Average October

    45.7 °F

  • Highest 5 October, 2026

    74.6 °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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