New Castle, DE Weather Forecast
New Castle County, Delaware
Live radar, warnings and storm tracking for New Castle, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for New Castle
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
New Castle, DE at a glance
New Castle is home to about 5,549 people in New Castle County, across 3.5 square miles. It ranks 11th by population of 25 places in Delaware with a forecast here. The nearest neighbour with its own forecast is Pennsville, 5 miles away.
- County
- New Castle County
- Population
- 5,549 2023 est.
- Land area
- 3.5 sq mi
- People per sq mi
- 1,595
- Forecast point
- 39.6700°N, 75.5665°W
How well can the network see New Castle?
The nearest Doppler radar is KDOX (Dover AFB, DE), to the S. Its lowest scan passes about 4,400 ft above New Castle. The beam is above the lowest few thousand feet here, so a warning for New Castle can come before anything looks dramatic on radar.
The closest weather station is KILG (Wilmington/New Castle Arpt). Close enough that its readings are the conditions in town.
Forecasts near New Castle
- Pennsville, NJ5 mi
- Wilmington, DE5 mi
- Elsmere, DE5 mi
- Penns Grove, NJ7 mi
- Carneys Point, NJ7 mi
- Delaware City, DE7 mi
- Salem, NJ9 mi
- Pilesgrove, NJ10 mi
Elsewhere in Delaware
WilmingtonDoverNewarkMiddletownMilfordSmyrnaAll Delaware forecasts →