Polson Bay Weather Forecast

    • 48
    • 55

    Rain Showers

    • 49
    • 73

    Chance Rain

    • 47
    • 76

    Mostly Sunny

    • 49
    • 78

    Partly Sunny

    • 49
    • 78

    Partly Sunny

    • 52
    • 81

    Mostly Sunny

    • 55
    • 87

    Mostly Sunny

Today 29 Jun Flathead/Mission Valleys

Rain likely in the Morning, then rain Showers likely and a chance of Thunderstorms in the afternoon. Chance of precipitation near 100 percent. Highs in the 50s. South Winds to 15 Mph in the morning.

Tonight 29 Jun Flathead/Mission Valleys

Rain Showers likely and a chance of Thunderstorms in the Evening, then Areas of rain after midnight. Chance of precipitation near 100 percent. Some Thunderstorms may produce heavy rainfall. Lows in the mid 40s to lower 50s.

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Polson Bay Temperature Statistics

June Temperature

Kalispell, Glacier Park International Airport (41.6 miles)

  • Lowest 14 June, 2026

    35.7 °F

  • Average June

    58.3 °F

  • Highest 20 June, 2026

    83.6 °F

Climate (2021–2026)

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

    57.1 °F
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