| NWS Forecast for: Newcastle Issued by: National Weather Service Rapid City, SD Last Update: 1005 PM MDT Tue Jun 16 2026 | |
Overnight: Partly cloudy and breezy. Lows in the upper 50s. Northwest winds 15 to 25 mph with gusts up to 35 mph. Wednesday: Mostly sunny and windy. Highs in the mid 70s. Northwest winds 25 to 35 mph with gusts up to 45 mph. Wednesday Night: Partly cloudy and breezy. Lows in the upper 40s. Northwest winds 20 to 30 mph with gusts up to 40 mph, diminishing to 10 to 15 mph after midnight. Thursday: Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 70s. Northwest winds 10 to 15 mph with gusts up to 25 mph. Thursday Night: Mostly clear. Lows in the upper 40s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the evening. Juneteenth: Mostly sunny. Highs in the lower 80s. Friday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 50s. Saturday: Mostly cloudy in the morning, then partly cloudy with a chance of showers and thunderstorms in the afternoon. Breezy with highs in the lower 80s. Chance of rain 50 percent. Saturday Night: Showers likely with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Breezy with lows in the lower 50s. Chance of rain 70 percent. Sunday: Showers likely. A chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 70 percent. Sunday Night: A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the upper 40s. Chance of rain 40 percent. Monday: Becoming partly cloudy. A chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 50 percent. Monday Night: Mostly clear in the evening, then becoming partly cloudy. A chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the upper 40s. Chance of rain 50 percent. Tuesday: Partly cloudy with a slight chance of showers in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 50 percent. | |
| Zone Forecast: Newcastle | |
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