Weather in New Castle, Delaware
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 05:00 PM ET · Refreshes every hour
59°F
Overcast
Feels like 58°F
94%
Humidity
8 mph
Wind Speed
About Weather in New Castle
New Castle is located in Delaware (coordinates: 39.670017°N, 75.566519°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.