Polson Bay Weather Forecast

    • 44
    • 79

    Patchy Smoke

    • 48
    • 87

    Partly Sunny

    • 41
    • 74

    Rain Showers Likely

    • 39
    • 70

    Chance Rain

    • 41
    • 74

    Partly Sunny

    • 44
    • 79

    Slight Chance Rain

Today 31 Aug Flathead/Mission Valleys

Mostly sunny. Patchy fog early in the morning. Highs in the 70s.

Tonight 31 Aug Flathead/Mission Valleys

Mostly clear. Lows in the 40s.

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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

    65.3 °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

    45.4 °F

  • Average High 2021–2026

    57 °F
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