Polson Bay Weather Forecast

    • 52
    • 88

    Becoming Sunny

    • 48
    • 80

    Slight Chance Thunderstorms

    • 48
    • 78

    Mostly Sunny

    • 51
    • 85

    Partly Sunny

    • 54
    • 91

    Mostly Sunny

    • 57
    • 93

    Partly Sunny

Today 20 Jun Flathead/Mission Valleys

Mostly sunny. Highs in the 80s. Southwest Winds to 15 Mph in the afternoon.

Tonight 20 Jun Flathead/Mission Valleys

Mostly clear. Lows in the upper 40s to mid 50s. West Winds to 15 Mph.

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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

    56.4 °F

  • Highest 16 June, 2026

    82.7 °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

    57.2 °F
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