Helena Valley Northwest Weather Forecast

    • 47
    • 74

    Chance Thunderstorms

    • 50
    • 81

    Becoming Sunny

    • 54
    • 86

    Mostly Sunny

    • 57
    • 93

    Mostly Sunny

    • 56
    • 93

    Mostly Sunny

    • 49
    • 81

    Mostly Sunny

    • 52
    • 83

    Mostly Sunny

Today 5 Jul Helena Valley

Mostly cloudy with a 50 percent chance of Thunderstorms. Highs in the mid 70s. West Winds 10 to 15 Mph.

Tonight 5 Jul Helena Valley

Mostly clear. Lows 45 to 50. Northwest Winds 5 to 10 Mph shifting to the southwest after midnight.

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Helena Valley Northwest Temperature Statistics

July Temperature

Helena Regional Airport (8.7 miles)

  • Lowest 1 July, 2025

    60.1 °F

  • Average July

    75.6 °F

  • Highest 1 July, 2025

    96.1 °F

Climate (2020–Present)

Helena Regional Airport (8.7 miles)

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  • Average Low 2020–2025

    36.1 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    59.4 °F
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