Upper Holter Lake Weather Forecast

    • 30
    • 49

    Chance Rain/Snow

    • 36
    • 57

    Rain

    • 29
    • 46

    Rain/Snow

    • 26
    • 46

    Chance Rain/Snow

    • 31
    • 54

    Partly Sunny

    • 33
    • 57

    Mostly Cloudy

Today 31 Mar Gates of the Mountains

Mostly sunny. Slight chance of snow late in the morning. Chance of snow early in the Afternoon, then slight chance of rain and snow late in the afternoon. Highs in the lower 40s. East Winds up to 10 Mph. Chance of precipitation 50 percent.

Tonight 31 Mar Gates of the Mountains

Not as cold. Mostly cloudy. A 20 percent chance of rain in the evening. Lows around 30. South Winds up to 5 Mph.

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Upper Holter Lake Temperature Statistics

March Temperature

Helena Regional Airport (14.9 miles)

  • Lowest 15 March, 2026

    4.6 °F

  • Average March

    42.3 °F

  • Highest 20 March, 2026

    77.6 °F

Climate (2021–Present)

Helena Regional Airport (14.9 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    60 °F
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