Polson Bay Weather Forecast

    • 31
    • 50

    Mostly Sunny

    • 28
    • 55

    Mostly Sunny

    • 32
    • 60

    Partly Sunny

    • 32
    • 62

    Mostly Sunny

    • 38
    • 67

    Mostly Sunny

    • 37
    • 70

    Partly Sunny

    • 35
    • 64

    Partly Sunny

Today 12 Oct Flathead/Mission Valleys

Mostly cloudy with a 20 percent chance of rain. Highs in the upper 50s to mid 60s.

Tonight 12 Oct Flathead/Mission Valleys

Mostly clear. Patchy fog in the late evening and overnight. Lows in the upper 20s to mid 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 6 October, 2026

    32.6 °F

  • Average October

    50.9 °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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