Polson Bay Weather Forecast

    • 43
    • 77

    Partly Cloudy

    • 44
    • 81

    Partly Sunny

    • 36
    • 61

    Rain

    • 30
    • 51

    Chance Rain

    • 29
    • 51

    Slight Chance Snow

    • 29
    • 52

    Mostly Cloudy

Today 20 Apr Flathead/Mission Valleys

Partly cloudy then becoming sunny in the late morning and early afternoon then becoming partly cloudy. Highs in the 70s.

Tonight 20 Apr Flathead/Mission Valleys

Partly cloudy. Lows in the upper 30s to mid 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Polson Bay Temperature Statistics

April Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 8 April, 2026

    20.6 °F

  • Average April

    43.1 °F

  • Highest 6 April, 2026

    67.6 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (41.6 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    57.1 °F
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