Polson Bay Weather Forecast

    • 51
    • 86

    Mostly Cloudy

    • 50
    • 87

    Partly Sunny

    • 51
    • 88

    Mostly Sunny

    • 53
    • 91

    Mostly Sunny

    • 55
    • 92

    Partly Sunny

    • 51
    • 89

    Chance Rain

Today 17 Aug Flathead/Mission Valleys

Mostly cloudy. Patchy fog early in the morning. Highs in the upper 70s to mid 80s.

Tonight 17 Aug Flathead/Mission Valleys

Mostly clear. Lows in the upper 40s to mid 50s.

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Polson Bay Temperature Statistics

August Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 5 August, 2026

    38.6 °F

  • Average August

    63.7 °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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