| NWS Forecast for: Castle Rock CO Issued by: National Weather Service Denver-Boulder, CO Last Update: 12:46 pm MDT Sep 13, 2026 |  |
| Tonight: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and 10pm. Mostly cloudy, with a low around 63. South wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. Monday: A slight chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 85. South southwest wind 7 to 11 mph becoming north northwest in the afternoon. Winds could gust as high as 18 mph. Chance of precipitation is 20%. Monday Night: A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 1am. Partly cloudy, with a low around 54. Northwest wind 5 to 7 mph becoming south in the evening. Chance of precipitation is 20%. Tuesday: A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 73. North wind 6 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 20%. Tuesday Night: A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. South wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. Wednesday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 82. Wednesday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 60%. Thursday: Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 76. Thursday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 55. Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 77. Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 74. Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 51. Sunday: A chance of showers and thunderstorms. Mostly sunny, with a high near 74. | |
| Castle Rock CO 39.38°N 104.84°W (Elev. 6526 ft) | |
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