Big Arm Weather Forecast

    • 59
    • 79

    Chance Thunderstorms

    • 52
    • 67

    Rain

    • 49
    • 66

    Rain Likely

    • 47
    • 57

    Rain Showers

    • 48
    • 59

    Rain Likely

    • 49
    • 67

    Chance Rain

    • 50
    • 70

    Partly Sunny

Today 25 Jun Flathead/Mission Valleys

Areas of rain early in the Morning, then rain Showers likely and a chance of Thunderstorms in the late morning and afternoon. Chance of precipitation 70 percent. Highs in the upper 70s to mid 80s.

Tonight 25 Jun Flathead/Mission Valleys

Mostly cloudy with a 20 percent chance of rain. Lows in the 50s.

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Big Arm Temperature Statistics

June Temperature

Kalispell, Glacier Park International Airport (34.8 miles)

  • Lowest 14 June, 2026

    35.7 °F

  • Average June

    57.6 °F

  • Highest 20 June, 2026

    83.6 °F

Climate (2021–2026)

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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