Jackson Lake Weather Forecast

    • 23
    • 45

    Partly Sunny

    • 28
    • 45

    Partly Sunny

    • 32
    • 52

    Partly Sunny

    • 29
    • 55

    Mostly Cloudy

    • 31
    • 51

    Mostly Cloudy

    • 33
    • 52

    Partly Sunny

Today 5 Nov Meagher County Valleys

Sunny until late afternoon then becoming partly sunny. Patchy fog early in the morning. Highs in the mid 40s. South Winds up to 10 Mph shifting to the west in the afternoon. Gusts up to 30 Mph.

Tonight 5 Nov Meagher County Valleys

Mostly clear. Lows 22 to 28. West Winds up to 10 Mph shifting to the south after midnight. Gusts up to 35 Mph.

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Jackson Lake Temperature Statistics

November Temperature

Helena Regional Airport (43.5 miles)

  • Lowest 2 November, 2026

    30.9 °F

  • Average November

    41.4 °F

  • Highest 2 November, 2026

    50 °F

Climate (2021–2026)

Helena Regional Airport (43.5 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.9 °F
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