Big Arm State Park Weather Forecast

    • 34
    • 47

    Rain Likely

    • 37
    • 46

    Chance Rain/Snow

    • 43
    • 50

    Chance Rain/Snow

    • 41
    • 54

    Rain Likely

    • 30
    • 47

    Rain Likely

    • 28
    • 40

    Snow Likely

Today 5 Mar Flathead/Mission Valleys

Mostly cloudy with a 50 percent chance of rain. Highs in the 40s to lower 50s.

Tonight 5 Mar Flathead/Mission Valleys

Mostly cloudy with a 50 percent chance of rain and snow. Lows in the mid 20s to lower 30s.

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Big Arm State Park Temperature Statistics

March Temperature

Kalispell, Glacier Park International Airport (33.6 miles)

  • Lowest 1 March, 2026

    18 °F

  • Average March

    33.1 °F

  • Highest 2 March, 2026

    52 °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

    57.2 °F
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