Big Arm Weather Forecast

    • 40
    • 58

    Mostly Cloudy

    • 36
    • 53

    Rain/Snow Likely

    • 28
    • 45

    Chance Snow

    • 35
    • 48

    Mostly Cloudy

    • 38
    • 54

    Rain Likely

    • 35
    • 48

    Rain/Snow Likely

Today 28 Mar Flathead/Mission Valleys

Mostly cloudy. Highs in the mid 50s to lower 60s.

Tonight 28 Mar Flathead/Mission Valleys

Mostly cloudy. Lows in the 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Arm Temperature Statistics

March Temperature

Kalispell, Glacier Park International Airport (34.8 miles)

  • Lowest 15 March, 2026

    5.6 °F

  • Average March

    38.6 °F

  • Highest 20 March, 2026

    68.6 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (34.8 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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