| NWS Forecast for: Newcastle Issued by: National Weather Service Rapid City, SD Last Update: 546 AM MDT Thu Aug 28 2025 |  |
Today: Mostly cloudy with a chance of showers. A slight chance of thunderstorms this morning, then a chance of thunderstorms this afternoon. Highs in the upper 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. Tonight: Mostly cloudy with showers and thunderstorms likely in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Southeast winds 10 to 15 mph. Gusts up to 25 mph in the evening. Chance of rain 60 percent. Friday: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Northwest winds 10 to 15 mph. Chance of rain 70 percent. Friday Night: A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 50s. North winds 10 to 15 mph. Chance of rain 50 percent. Saturday: Partly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the mid 70s. Northwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 50 percent. Saturday Night: Partly cloudy with a chance of showers with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows around 50. Chance of rain 30 percent. Sunday: Mostly sunny. Highs around 80. Sunday Night: Clear. Lows in the lower 50s. Labor Day: Sunny. Highs in the mid 80s. Monday Night: Clear. Lows in the lower 50s. Tuesday: Mostly sunny. Highs in the mid 80s. Tuesday Night: A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the lower 50s. Chance of rain 20 percent. Wednesday: Partly cloudy. Highs in the lower 70s. | |
| Zone Forecast: Newcastle | |
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