Polson Bay Weather Forecast

    • 33
    • 57

    Mostly Sunny

    • 36
    • 62

    Partly Sunny

    • 35
    • 70

    Partly Sunny

    • 36
    • 59

    Partly Sunny

    • 35
    • 58

    Mostly Cloudy

    • 33
    • 54

    Slight Chance Rain

Today 15 Oct Flathead/Mission Valleys

Mostly sunny. Widespread frost in the morning. Highs in the 50s.

Tonight 15 Oct Flathead/Mission Valleys

Mostly clear. Areas of frost and patchy fog after midnight. Lows in the upper 20s to mid 30s.

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  • Temperature Real-Time

Polson Bay Temperature Statistics

October Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 12 October, 2026

    30 °F

  • Average October

    49.3 °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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