| NWS Forecast for: Newcastle Issued by: National Weather Service Rapid City, SD Last Update: 258 PM MDT Tue Aug 4 2026 |  |
Late This Afternoon: Partly cloudy. Areas of smoke. Near steady temperature in the lower 70s. Southeast winds 5 to 10 mph. Tonight: Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Areas of smoke. Lows around 50. Southeast winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 20 percent. Wednesday: Sunny. Areas of smoke. Highs in the lower 80s. South winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Wednesday Night: Clear. Areas of smoke. Lows in the mid 50s. East winds 5 to 10 mph. Gusts up to 20 mph in the evening. Thursday: Sunny. Highs in the lower 90s. South winds around 5 mph, becoming northwest with gusts up to 20 mph in the afternoon. Thursday Night: Clear. Lows in the upper 50s. North winds 5 to 10 mph. Gusts up to 20 mph in the evening. Friday: Sunny. Highs in the mid 90s. Friday Night: Clear. Lows around 60. Saturday: Sunny. Highs in the upper 90s. Saturday Night: Clear. Lows in the lower 60s. Sunday: Mostly sunny. Highs in the upper 90s. Sunday Night: Mostly clear. Lows in the mid 60s. Monday: Mostly sunny. Highs in the lower 90s. Monday Night: Mostly clear with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Breezy with lows in the lower 60s. Chance of rain 30 percent. Tuesday: Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. | |
| Zone Forecast: Newcastle | |
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