Coopers Lake Weather Forecast

    • 47
    • 72

    Chance Thunderstorms

    • 49
    • 75

    Mostly Sunny

    • 51
    • 81

    Sunny

    • 52
    • 83

    Mostly Sunny

    • 53
    • 83

    Partly Sunny

    • 52
    • 83

    Partly Sunny

Today 22 Jul Butte/Blackfoot Region

Mostly cloudy with a 50 percent chance of Showers and Thunderstorms. Patchy fog in the morning. Highs in the upper 60s to mid 70s. West Winds to 15 Mph.

Tonight 22 Jul Butte/Blackfoot Region

Mostly cloudy in the evening then clearing. Lows in the 40s. Northwest Winds to 15 Mph.

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Coopers Lake Temperature Statistics

July Temperature

Helena Regional Airport (54.7 miles)

  • Lowest 5 July, 2025

    49.6 °F

  • Average July

    71.9 °F

  • Highest 8 July, 2025

    97.6 °F

Climate (2020–Present)

Helena Regional Airport (54.7 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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