Castle Rock Weather Forecast

    • 57
    • 86

    Slight Chance Thunderstorms

    • 58
    • 90

    Mostly Sunny

    • 59
    • 91

    Mostly Sunny

    • 60
    • 91

    Partly Sunny

    • 61
    • 90

    Partly Sunny

    • 61
    • 89

    Chance Thunderstorms

Today 1 Sep Elbert/Central and East Douglas Counties Above 6000 Feet

Mostly cloudy until late Afternoon, then partly cloudy with a slight chance of Thunderstorms late in the afternoon. Highs in the lower to mid 80s. Chance of precipitation 10 percent.

Tonight 1 Sep Elbert/Central and East Douglas Counties Above 6000 Feet

Mostly clear. Lows in the mid to upper 50s.

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Castle Rock Temperature Statistics

September Temperature

Denver - Centennial Airport (12.4 miles)

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Climate (2021–2026)

Denver - Centennial Airport (12.4 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    66.1 °F
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