Garrison Weather Forecast

    • 22
    • 41

    Decreasing Clouds

    • 28
    • 44

    Mostly Sunny

    • 25
    • 47

    Chance Snow

    • 22
    • 47

    Partly Sunny

    • 21
    • 48

    Partly Sunny

    • 22
    • 50

    Mostly Sunny

Today 25 Feb Butte/Blackfoot Region

Partly cloudy. A 50 percent chance of Areas of snow early in the morning. Highs in the mid 30s to lower 40s. Windy with southwest Winds 20 to 30 Mph with Gusts to around 50 Mph.

Tonight 25 Feb Butte/Blackfoot Region

Mostly clear. Lows 18 to 25. Southwest Winds 15 to 25 Mph with Gusts to around 45 Mph.

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Garrison Temperature Statistics

February Temperature

Helena Regional Airport (39.8 miles)

  • Lowest 19 February, 2026

    -3.4 °F

  • Average February

    33.2 °F

  • Highest 7 February, 2026

    61.6 °F

Climate (2021–Present)

Helena Regional Airport (39.8 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    59.9 °F
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