Polson Bay Weather Forecast

    • 54
    • 94

    Patchy Smoke

    • 56
    • 94

    Increasing Clouds

    • 54
    • 93

    Chance Rain Showers

    • 48
    • 85

    Mostly Sunny

    • 49
    • 84

    Mostly Sunny

    • 51
    • 88

    Mostly Sunny

    • 50
    • 88

    Partly Sunny

Today 20 Aug Flathead/Mission Valleys

Mostly sunny. Patchy smoke. Highs in the mid 80s to lower 90s.

Tonight 20 Aug Flathead/Mission Valleys

Mostly clear. Lows in the 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Polson Bay Temperature Statistics

August Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 5 August, 2026

    38.6 °F

  • Average August

    63.8 °F

  • Highest 1 August, 2026

    93.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (41.6 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    56.9 °F
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