Jackson Lake Weather Forecast

    • 35
    • 52

    Decreasing Clouds

    • 34
    • 57

    Mostly Sunny

    • 31
    • 57

    Mostly Sunny

    • 33
    • 52

    Partly Sunny

    • 33
    • 52

    Mostly Cloudy

    • 25
    • 43

    Chance Snow

Today 4 Feb Meagher County Valleys

Mostly sunny. Highs in the lower 50s. Southwest Winds 5 to 15 Mph. Gusts up to 35 Mph increasing to 45 Mph in the afternoon.

Tonight 4 Feb Meagher County Valleys

Mostly clear. Lows in the mid 30s. Southwest Winds up to 10 Mph with Gusts to around 30 Mph.

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  • Temperature Real-Time

Jackson Lake Temperature Statistics

February Temperature

Helena Regional Airport (43.5 miles)

  • Lowest 1 February, 2026

    28.9 °F

  • Average February

    39.6 °F

  • Highest 1 February, 2026

    48.9 °F

Climate (2021–Present)

Helena Regional Airport (43.5 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    59.6 °F
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