Big Arm State Park Weather Forecast

    • 33
    • 43

    Partly Sunny

    • 36
    • 45

    Mostly Cloudy

    • 33
    • 48

    Chance Rain/Snow

    • 31
    • 49

    Partly Sunny

    • 32
    • 49

    Sunny

    • 34
    • 51

    Partly Sunny

    • 37
    • 52

    Mostly Cloudy

Today 25 Feb Flathead/Mission Valleys

Mostly cloudy. Slight chance of snow early in the morning. Slight chance of snow in the afternoon. Chance of snow 20 percent. Highs in the upper 30s to mid 40s. Windy with southwest Winds 20 to 30 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 25 Feb Flathead/Mission Valleys

Mostly cloudy. A 20 percent chance of snow in the late evening and overnight. Lows in the mid 20s to lower 30s. Windy with south Winds 20 to 30 Mph. Gusts up to 30 Mph in the evening.

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Big Arm State Park Temperature Statistics

February Temperature

Kalispell, Glacier Park International Airport (33.6 miles)

  • Lowest 21 February, 2026

    3.7 °F

  • Average February

    31.8 °F

  • Highest 5 February, 2026

    54.6 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (33.6 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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