| NWS Forecast for: Castle Rock CO Issued by: National Weather Service Denver-Boulder, CO Last Update: 12:46 am MDT Sep 4, 2026 | |
| Today: A slight chance of showers between 2pm and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 90. Light and variable wind becoming southeast 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 20%. Tonight: A 20 percent chance of showers before 8pm. Partly cloudy, with a low around 61. South southeast wind 6 to 9 mph becoming southwest after midnight. Winds could gust as high as 15 mph. Saturday: A 20 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 86. Southwest wind 5 to 7 mph becoming northeast in the afternoon. Saturday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 62. South southwest wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 20%. Sunday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88. Calm wind becoming southeast 5 to 7 mph in the afternoon. Winds could gust as high as 17 mph. Sunday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 62. Chance of precipitation is 20%. Labor Day: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 89. Chance of precipitation is 60%. Monday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 60. Tuesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 85. Tuesday Night: A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 59. Wednesday: A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 86. | |
| Castle Rock CO 39.38°N 104.84°W (Elev. 6526 ft) | |
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