Coopers Lake Weather Forecast

    • 20
    • 31

    Snow

    • 38
    • 44

    Snow

    • 39
    • 50

    Chance Rain

    • 37
    • 52

    Chance Rain

    • 39
    • 57

    Chance Rain

    • 39
    • 60

    Chance Rain

Today 15 Mar Butte/Blackfoot Region

Partly cloudy. Highs in the upper 20s to mid 30s. West Winds to 15 Mph.

Tonight 15 Mar Butte/Blackfoot Region

Mostly cloudy with a 40 percent chance of snow. Lows 19 to 26. Southwest Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Coopers Lake Temperature Statistics

March Temperature

Helena Regional Airport (54.7 miles)

  • Lowest 11 March, 2026

    18 °F

  • Average March

    40.4 °F

  • Highest 3 March, 2026

    61.6 °F

Climate (2021–Present)

Helena Regional Airport (54.7 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    60 °F
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