Canyon Ferry Lake Weather Forecast

    • 57
    • 73

    Chance Rain Showers

    • 58
    • 73

    Chance Rain Showers

    • 56
    • 73

    Chance Thunderstorms

    • 57
    • 73

    Partly Sunny

    • 59
    • 75

    Mostly Sunny

    • 60
    • 78

    Partly Sunny

Today 16 Aug Canyon Ferry Area

Mostly sunny. Patchy fog early in the morning. Slight chance of rain Showers early in the afternoon. Chance of rain Showers and slight chance of Thunderstorms late in the afternoon. Highs in the upper 70s. South Winds up to 5 Mph shifting to the northwest in the afternoon. Chance of precipitation 40 percent.

Tonight 16 Aug Canyon Ferry Area

Mostly cloudy. Chance of rain Showers and slight chance of Thunderstorms in the evening. Lows 49 to 55. West Winds 5 to 10 Mph with Gusts to around 25 Mph shifting to the south after midnight. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Canyon Ferry Lake Temperature Statistics

August Temperature

Helena Regional Airport (25.5 miles)

  • Lowest 4 August, 2026

    45.6 °F

  • Average August

    70.4 °F

  • Highest 1 August, 2026

    103.6 °F

Climate (2021–2026)

Helena Regional Airport (25.5 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    47.9 °F

  • Average High 2021–2026

    59.9 °F
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