Canyon Lake Weather Forecast

    • 54
    • 72

    Slight Chance Thunderstorms

    • 52
    • 85

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

    • 55
    • 77

    Rain Showers Likely

    • 50
    • 74

    Rain Showers Likely

    • 47
    • 73

    Chance Rain Showers

    • 51
    • 74

    Chance Rain Showers

Today 15 Sep Rapid City

Partly cloudy in the Morning, then clearing. Highs in the mid 70s.

Tonight 15 Sep Rapid City

Mostly clear this Evening, then mostly cloudy with a slight chance of Showers and Thunderstorms after midnight. Lows in the mid 50s. Southeast Winds 5 to 10 Mph, increasing to south 10 to 20 Mph with Gusts up to 30 Mph after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Canyon Lake Temperature Statistics

September Temperature

Ellsworth Air Force Base (11.2 miles)

  • Lowest 13 September, 2026

    47.5 °F

  • Average September

    73.3 °F

  • Highest 4 September, 2026

    96.4 °F

Climate (2021–2026)

Ellsworth Air Force Base (11.2 miles)

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  • Average Low 2021–2026

    38 °F

  • Average 2021–2026

    49.6 °F

  • Average High 2021–2026

    61.3 °F
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