Castle Rock, SD 7-Day Weather Forecast
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Castle Rock Weather Forecast


Castle Rock, SD Weather Forecast Date: 832 AM MDT Sat Sep 19 2026
Weather forecast for Castle Rock, SD
| Today Hi: 65°FHi: 18°C Lo: 50°F Lo: 10°C |
Rest of Today... Areas of fog this morning. Cloudy with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Highs in the mid 60s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50%. |
| Sun Hi: 59°FHi: 15°C Lo: 49°F Lo: 9°C |
Sunday... Showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 50s. East winds 15 to 20 mph with gusts up to 30 mph. |
| Mon Hi: 65°FHi: 18°C Lo: 45°F Lo: 7°C |
Monday... Cloudy in the morning, then partly cloudy with a slight chance of showers in the afternoon. Breezy with highs in the mid 60s. Southeast winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 20%. |
| Tue Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Tuesday... Partly cloudy in the morning, then clearing. Breezy with highs in the lower 70s. |
| Wed Hi: 79°FHi: 26°C Lo: 51°F Lo: 11°C |
Wednesday... Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20%. |
| Thu Hi: 80°FHi: 27°C Lo: 51°F Lo: 11°C |
Thursday... Partly cloudy in the morning, then clearing. Highs around 80. |
| Fri Hi: 80°FHi: 27°C |
Friday... Partly cloudy and breezy. Highs around 80. |
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