Helena Weather Forecast

    • 44
    • 77

    Breezy

    • 27
    • 65

    Chance Rain

    • 30
    • 54

    Partly Sunny

    • 34
    • 58

    Mostly Cloudy

    • 44
    • 64

    Mostly Cloudy

    • 28
    • 62

    Slight Chance Rain/Snow

Today 20 Mar Helena Valley

Windy. Mostly sunny. Highs in the upper 70s. South Winds 5 to 10 Mph with Gusts to around 30 Mph increasing to west 20 to 30 Mph with Gusts to around 55 Mph in the afternoon.

Tonight 20 Mar Helena Valley

Partly cloudy. Lows in the mid 40s. Southwest Winds 5 to 15 Mph. Gusts up to 45 Mph decreasing to 25 Mph after midnight.

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Helena Temperature Statistics

March Temperature

Helena Regional Airport (1.9 miles)

  • Lowest 15 March, 2026

    4.6 °F

  • Average March

    38.1 °F

  • Highest 18 March, 2026

    66.9 °F

Climate (2021–Present)

Helena Regional Airport (1.9 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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