Polson Bay Weather Forecast

    • 50
    • 84

    Chance Thunderstorms

    • 45
    • 70

    Rain

    • 42
    • 59

    Rain

    • 42
    • 62

    Chance Rain

    • 44
    • 70

    Partly Sunny

    • 46
    • 76

    Partly Sunny

Today 29 May Flathead/Mission Valleys

Partly cloudy. A 30 percent chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s to mid 80s.

Tonight 29 May Flathead/Mission Valleys

Mostly cloudy. Chance of rain Showers and a slight chance of Thunderstorms in the Evening, then a chance of rain after midnight. Chance of precipitation 50 percent. Lows in the upper 40s to mid 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Polson Bay Temperature Statistics

May Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 6 May, 2026

    29.6 °F

  • Average May

    53.3 °F

  • Highest 25 May, 2026

    83.6 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (41.6 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.6 °F

  • Average High 2021–2026

    57.2 °F
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