Polson Bay Weather Forecast

    • 50
    • 80

    Partly Sunny

    • 41
    • 78

    Chance Rain

    • 36
    • 60

    Partly Sunny

    • 39
    • 63

    Mostly Cloudy

    • 39
    • 64

    Partly Sunny

    • 41
    • 63

    Slight Chance Rain

    • 40
    • 63

    Partly Sunny

Today 24 Sep Flathead/Mission Valleys

Partly cloudy. Highs in the 60s.

Tonight 24 Sep Flathead/Mission Valleys

Partly cloudy. Lows in the mid 40s to lower 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Polson Bay Temperature Statistics

September Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 17 September, 2026

    38.6 °F

  • Average September

    56.9 °F

  • Highest 1 September, 2026

    84.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (41.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
Get WillyWeather+ to remove ads