Polson Bay Weather Forecast

    • 46
    • 76

    Rain Showers Likely

    • 49
    • 82

    Partly Sunny

    • 50
    • 86

    Partly Sunny

    • 49
    • 85

    Chance Thunderstorms

    • 47
    • 81

    Chance Rain Showers

    • 48
    • 82

    Partly Sunny

Today 14 Aug Flathead/Mission Valleys

Areas of rain in the Morning, then rain Showers likely and a chance of Thunderstorms in the afternoon. Patchy smoke late in the afternoon. Chance of precipitation 70 percent. Highs in the upper 60s to mid 70s.

Tonight 14 Aug Flathead/Mission Valleys

Mostly clear. Patchy fog after midnight. 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

    63.9 °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

    57 °F
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