Polson Bay Weather Forecast

    • 51
    • 79

    Rain Likely

    • 52
    • 84

    Chance Thunderstorms

    • 54
    • 91

    Chance Rain

    • 50
    • 84

    Rain Showers Likely

    • 44
    • 68

    Rain Showers Likely

    • 42
    • 66

    Chance Rain

    • 43
    • 71

    Slight Chance Rain

Today 26 May Flathead/Mission Valleys

Rain Showers likely and a chance of Thunderstorms in the afternoon. Chance of precipitation 60 percent. Highs in the mid 70s to lower 80s.

Tonight 26 May Flathead/Mission Valleys

Rain Showers likely and a chance of Thunderstorms early in the Evening, then rain likely late in the evening. Slight chance of rain after midnight. Chance of precipitation 70 percent. Some Thunderstorms may produce gusty Winds and small hail. 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

    52 °F

  • Highest 24 May, 2026

    77 °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

    45.5 °F

  • Average High 2021–2026

    57.2 °F
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