Helena Weather Forecast

    • 49
    • 72

    Slight Chance Rain Showers

    • 42
    • 62

    Rain Showers Likely

    • 43
    • 63

    Mostly Sunny

    • 44
    • 67

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

    • 55
    • 72

    Chance Rain Showers

    • 54
    • 70

    Slight Chance Rain Showers

Today 1 May Andrew

Patchy fog this morning. Cloudy with a chance of Showers. A chance of Thunderstorms this afternoon. Highs around 70. West Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 1 May Andrew

Mostly cloudy. Lows around 50. Northwest Winds 10 to 15 Mph, becoming west around 5 Mph after midnight.

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Helena Temperature Statistics

May Temperature

St. Joseph, Rosecrans Memorial Airport (16.8 miles)

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  • Average May

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Climate (2020–Present)

St. Joseph, Rosecrans Memorial Airport (16.8 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    66.5 °F
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