| NWS Forecast for: Rapid City Issued by: National Weather Service Rapid City, SD Last Update: 127 AM MDT Sat Sep 12 2026 |  |
| Overnight: Partly cloudy with a 20 percent chance of showers. Lows in the upper 40s. North winds 10 to 15 mph with gusts up to 25 mph. Saturday: Partly cloudy. Highs in the lower 70s. Northeast winds 5 to 10 mph, becoming southeast with gusts up to 25 mph in the afternoon. Saturday Night: Partly cloudy. Lows in the upper 40s. Northeast winds 5 to 10 mph. Gusts up to 25 mph in the evening. Sunday: Becoming mostly cloudy. Highs in the upper 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph, increasing to southeast 10 to 20 mph with gusts up to 30 mph in the afternoon. Sunday Night: Mostly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the mid 50s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent. Monday: Partly cloudy in the morning, then clearing. Highs in the mid 70s. Monday Night: Clear. Lows in the mid 40s. Tuesday: Mostly sunny. Highs around 70. Tuesday Night: Partly cloudy. A slight chance of showers after midnight. Lows around 50. Chance of rain 20 percent. Wednesday: Partly cloudy. A slight chance of showers in the morning. Highs in the mid 70s. Chance of rain 20 percent. Wednesday Night: Mostly clear. Lows in the upper 40s. Thursday: Mostly sunny. Highs in the upper 70s. Thursday Night: Mostly clear. Lows in the lower 50s. Friday: Mostly sunny with a 20 percent chance of showers. Highs around 80. | |
| Zone Forecast: Rapid City | |
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