Cannon Lake Weather Forecast

    • 23
    • 37

    Snow

    • 23
    • 38

    Partly Sunny

    • 25
    • 41

    Mostly Sunny

    • 28
    • 40

    Partly Sunny

    • 26
    • 41

    Mostly Cloudy

    • 25
    • 40

    Chance Snow

Today 9 Feb Big Belt

Mostly cloudy. Snow likely in the Morning, then chance of snow in the afternoon. Snow accumulation up to 9 Inches. Total snow accumulation up to 14 Inches. Near steady temperature in the lower 30s. West Winds 5 to 15 Mph with Gusts to around 40 Mph. Chance of snow 70 percent.

Tonight 9 Feb Big Belt

Colder. Partly cloudy. A 20 percent chance of snow in the evening. Lows 16 to 22. Southwest Winds up to 10 Mph with Gusts to around 40 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cannon Lake Temperature Statistics

February Temperature

Helena Regional Airport (31.1 miles)

  • Lowest 6 February, 2026

    25 °F

  • Average February

    40.4 °F

  • Highest 5 February, 2026

    57.9 °F

Climate (2021–Present)

Helena Regional Airport (31.1 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    59.7 °F
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