Cannon Lake Weather Forecast

    • 26
    • 42

    Breezy

    • 27
    • 42

    Mostly Sunny

    • 41
    • 51

    Partly Sunny

    • 42
    • 56

    Mostly Cloudy

    • 35
    • 52

    Partly Sunny

    • 39
    • 52

    Mostly Cloudy

    • 41
    • 56

    Chance Rain/Snow

Today 7 Nov Big Belt

Windy. Mostly cloudy with a 50 percent chance of snow and rain late in the Morning, then partly cloudy in the afternoon. Near steady temperature in the upper 30s. West Winds 20 to 30 Mph with Gusts to around 45 Mph.

Tonight 7 Nov Big Belt

Breezy, Colder. Partly cloudy. Lows 20 to 25. West Winds 15 to 25 Mph with Gusts to around 45 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cannon Lake Temperature Statistics

November Temperature

Helena Regional Airport (31.1 miles)

  • Lowest 3 November, 2025

    30.9 °F

  • Average November

    43.4 °F

  • Highest 1 November, 2025

    73 °F

Climate (2020–Present)

Helena Regional Airport (31.1 miles)

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  • Average Low 2020–2025

    36.2 °F

  • Average 2020–2025

    47.6 °F

  • Average High 2020–2025

    59.4 °F
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