Helmville Weather Forecast

    • 37
    • 68

    Partly Sunny

    • 40
    • 70

    Mostly Cloudy

    • 38
    • 69

    Mostly Sunny

    • 43
    • 78

    Partly Sunny

    • 39
    • 73

    Mostly Sunny

    • 42
    • 80

    Partly Sunny

    • 41
    • 75

    Mostly Sunny

Today 7 May Butte/Blackfoot Region

Partly cloudy. Highs in the 60s. Northwest Winds 15 to 20 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 7 May Butte/Blackfoot Region

Partly cloudy. Lows in the 30s to lower 40s. Northwest Winds 15 to 20 Mph with Gusts to around 30 Mph in the evening.

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Helmville Temperature Statistics

May Temperature

Helena Regional Airport (49.7 miles)

  • Lowest 1 May, 2026

    32.6 °F

  • Average May

    51.9 °F

  • Highest 3 May, 2026

    76.6 °F

Climate (2021–Present)

Helena Regional Airport (49.7 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    60 °F
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