Helena National Forest Weather Forecast

    • 40
    • 64

    Becoming Sunny

    • 46
    • 75

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 39
    • 71

    Rain Showers Likely

    • 34
    • 53

    Chance Rain Showers

    • 41
    • 66

    Partly Sunny

    • 47
    • 76

    Partly Sunny

Today 1 May Big Belt

Partly cloudy. Highs 50 to 60. Northwest Winds up to 10 Mph.

Tonight 1 May Big Belt

Mostly clear. Lows 35 to 40. Northeast Winds up to 10 Mph shifting to the southeast after midnight.

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Helena National Forest Temperature Statistics

May Temperature

Helena Regional Airport (15.5 miles)

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Climate (2020–Present)

Helena Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    36.1 °F

  • Average 2020–2025

    47.4 °F

  • Average High 2020–2025

    59.2 °F
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