Barney Park Weather Forecast

    • 54
    • 83

    Clearing Late

    • 58
    • 88

    Mostly Sunny

    • 59
    • 94

    Mostly Sunny

    • 58
    • 92

    Mostly Sunny

    • 53
    • 87

    Mostly Sunny

    • 52
    • 83

    Mostly Sunny

Today 17 Aug Helena Valley

Not as warm. Mostly cloudy. A 50 percent chance of Thunderstorms in the afternoon. Highs 80 to 85. West Winds up to 10 Mph.

Tonight 17 Aug Helena Valley

Mostly cloudy with a 30 percent chance of Thunderstorms in the Evening, then partly cloudy after midnight. Lows 50 to 55. Southeast Winds up to 10 Mph.

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Barney Park Temperature Statistics

August Temperature

Helena Regional Airport (2.5 miles)

  • Lowest 7 August, 2025

    49.6 °F

  • Average August

    70 °F

  • Highest 12 August, 2025

    95.6 °F

Climate (2020–Present)

Helena Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    36 °F

  • Average 2020–2025

    47.5 °F

  • Average High 2020–2025

    59.4 °F
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