| NWS Forecast for: Newcastle Issued by: National Weather Service Rapid City, SD Last Update: 458 PM MDT Fri Mar 13 2026 | |
Late This Afternoon: Partly cloudy. Near steady temperature in the upper 40s. North winds 5 to 10 mph with gusts up to 20 mph. Tonight: Partly cloudy. Lows in the lower 20s. Southeast winds 5 to 10 mph. Gusts up to 20 mph after midnight. Saturday: Partly cloudy in the morning, then mostly cloudy with a slight chance of rain in the afternoon. Breezy with highs in the lower 60s. Southeast winds 10 to 15 mph, increasing to west 15 to 25 mph with gusts up to 35 mph in the afternoon. Chance of rain 20 percent. Saturday Night: Rain and snow in the evening, then snow likely after midnight. Snow accumulation around an inch. Windy with lows 10 to 15. Northwest winds 25 to 35 mph with gusts up to 45 mph. Chance of precipitation 90 percent. Wind chill values around 5 below after midnight. Sunday: Mostly cloudy with a chance of snow in the morning, then partly cloudy in the afternoon. Little or no additional snow accumulation. Breezy and much cooler with highs in the upper 20s. Northwest winds 15 to 25 mph. Gusts up to 40 mph, decreasing to 30 mph in the afternoon. Chance of snow 50 percent. Wind chill values around 5 below in the morning. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Lows 5 to 10 above. Northwest winds 10 to 15 mph with gusts up to 30 mph, diminishing to around 5 mph after midnight. Wind chill values near zero. Monday: Becoming mostly cloudy. Highs around 40. Monday Night: Mostly cloudy. Not as cool with lows in the mid 20s. Tuesday: Becoming partly cloudy. Breezy and not as cool with highs in the upper 60s. Tuesday Night: Partly cloudy and breezy. Lows in the upper 30s. Wednesday: Partly cloudy in the morning, then clearing. Highs in the lower 70s. Wednesday Night: Mostly clear. Lows in the upper 30s. Thursday: Partly cloudy. Highs in the mid 70s. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 40s. Friday: Partly cloudy. Highs in the upper 70s. | |
| Zone Forecast: Newcastle | |
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