Kalispell Weather Forecast

    • 17
    • 29

    Mostly Cloudy

    • 18
    • 31

    Partly Sunny

    • 24
    • 32

    Mostly Cloudy

    • 30
    • 37

    Chance Rain/Snow

    • 30
    • 40

    Chance Rain/Snow

    • 27
    • 39

    Chance Rain/Snow

Today 30 Dec Flathead/Mission Valleys

Mostly cloudy. Patchy freezing fog in the morning. Highs in the upper 20s to mid 30s.

Tonight 30 Dec Flathead/Mission Valleys

Mostly cloudy. Lows 15 to 22.

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Kalispell Temperature Statistics

December Temperature

Kalispell, Glacier Park International Airport (7.5 miles)

  • Lowest 27 December, 2025

    9 °F

  • Average December

    34.7 °F

  • Highest 15 December, 2025

    53.6 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (7.5 miles)

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  • Average Low 2020–2025

    33.3 °F

  • Average 2020–2025

    45.4 °F

  • Average High 2020–2025

    57 °F
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