Castle Rock Weather Forecast

    • 54
    • 75

    Slight Chance Thunderstorms

    • 58
    • 84

    Chance Thunderstorms

    • 55
    • 79

    Rain Showers Likely

    • 53
    • 83

    Rain Showers Likely

    • 51
    • 78

    Rain Showers Likely

    • 50
    • 75

    Chance Thunderstorms

    • 51
    • 75

    Slight Chance Thunderstorms

Today 15 Sep Elbert/Central and East Douglas Counties Above 6000 Feet

Mostly cloudy. Slight chance of Thunderstorms late in the afternoon. Highs near 70. Southeast Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of precipitation 20 percent.

Tonight 15 Sep Elbert/Central and East Douglas Counties Above 6000 Feet

Mostly cloudy. Slight chance of Showers in the evening. Lows in the lower to mid 50s. South Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Castle Rock Temperature Statistics

September Temperature

Denver - Centennial Airport (12.4 miles)

  • Lowest 10 September, 2026

    52.6 °F

  • Average September

    72.6 °F

  • Highest 4 September, 2026

    91.7 °F

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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