Polson Bay Weather Forecast

    • 28
    • 48

    Rain/Snow Likely

    • 24
    • 46

    Chance Snow

    • 26
    • 50

    Partly Sunny

    • 28
    • 51

    Mostly Cloudy

    • 34
    • 55

    Mostly Cloudy

    • 35
    • 59

    Slight Chance Rain

Today 23 Apr Flathead/Mission Valleys

Slight chance of Thunderstorms. Chance of Thunderstorms 90 percent. Snow level 3000 feet. Little or no new snow accumulation. Highs in the 40s to lower 50s. Northwest Winds to 15 Mph.

Tonight 23 Apr Flathead/Mission Valleys

Chance of valley rain with mountain snow likely in the Evening, then slight chance of snow after midnight. Chance of precipitation 60 percent. Little or no new snow accumulation. Lows in the 20s to lower 30s.

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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

    43.3 °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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