Coopers Lake Weather Forecast

    • 24
    • 45

    Chance Rain

    • 24
    • 45

    Partly Sunny

    • 34
    • 47

    Mostly Cloudy

    • 37
    • 53

    Rain Likely

    • 25
    • 46

    Chance Rain

    • 30
    • 46

    Mostly Cloudy

Today 29 Oct Butte/Blackfoot Region

Partly cloudy. Highs in the mid 40s to lower 50s. West Winds 15 to 20 Mph with Gusts to around 30 Mph.

Tonight 29 Oct Butte/Blackfoot Region

Mostly clear. Lows 16 to 23. West Winds 15 to 20 Mph with Gusts to around 30 Mph.

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Coopers Lake Temperature Statistics

October Temperature

Helena Regional Airport (54.7 miles)

  • Lowest 6 October, 2025

    24.1 °F

  • Average October

    46.3 °F

  • Highest 10 October, 2025

    75.9 °F

Climate (2020–Present)

Helena Regional Airport (54.7 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    59.5 °F
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