National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 39.38°N 104.84°W (Text-Only)
NWS Forecast for: Castle Rock CO
Issued by: National Weather Service Denver-Boulder, CO
Last Update: 12:46 am MDT Oct 17, 2026		Print

  • Overnight

    Overnight: Clear, with a low around 2. South wind around 13 km/h.

    Low: 2 °C

    Clear

  • Saturday

    Saturday: Sunny, with a high near 23. South wind 8 to 13 km/h becoming light and variable.

    High: 23 °C

    Sunny

  • Saturday
    Night

    Saturday Night: Clear, with a low around 6. South southwest wind 10 to 14 km/h, with gusts as high as 24 km/h.

    Low: 6 °C

    Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 22. South southwest wind 5 to 13 km/h becoming north northeast in the afternoon.

    High: 22 °C

    Mostly Sunny

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 7. Calm wind.

    Low: 7 °C

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 21.

    High: 21 °C

    Mostly Sunny

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 7.

    Low: 7 °C

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 22.

    High: 22 °C

    Sunny

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 8.

    Low: 8 °C

    Mostly Clear

    • Overnight: Clear, with a low around 2. South wind around 13 km/h.

    Saturday: Sunny, with a high near 23. South wind 8 to 13 km/h becoming light and variable.

    Saturday Night: Clear, with a low around 6. South southwest wind 10 to 14 km/h, with gusts as high as 24 km/h.

    Sunday: Mostly sunny, with a high near 22. South southwest wind 5 to 13 km/h becoming north northeast in the afternoon.

    Sunday Night: Partly cloudy, with a low around 7. Calm wind.

    Monday: Mostly sunny, with a high near 21.

    Monday Night: Mostly clear, with a low around 7.

    Tuesday: Sunny, with a high near 22.

    Tuesday Night: Mostly clear, with a low around 8.

    Wednesday: Mostly sunny, with a high near 23.

    Wednesday Night: Mostly cloudy, with a low around 11.

    Thursday: Partly sunny, with a high near 24. Breezy.

    Thursday Night: A slight chance of showers. Mostly cloudy, with a low around 11. Breezy.

    Friday: A chance of showers. Partly sunny, with a high near 22. Breezy.


    Castle Rock CO
     39.38°N 104.84°W (Elev. 6526 m)

    Visit your local NWS office at: https://www.weather.gov/bou