Updated 2026-09-26 10:00 local time · ZIP codes 19720
Light rain
* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and very rough waters. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...Until 6 AM EDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and very rough waters. * WHERE...Delaware Bay waters north of East Point NJ to Slaughter Beach DE. * WHEN...Until 6 AM EDT Sunday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
54°79% rain
59°50% rain
59°27% rain58°43% rain57°68% rain
56°84% rain56°86% rain56°85% rain56°69% rain
56°78% rain56°80% rain
56°31% rainRain chance reaches about 86% over the next 12 hours.
It feels like 46°F with winds near 18 mph.
59°F, 27% rain chance and 16 mph wind.
Visibility is around 5 mi; gusts may reach 38 mph.
Current temperature is 54°F, wind 18 mph, rain chance up to 86%.
UV index is 0.
Delaware has a humid climate moderated near the Atlantic and Delaware Bay, with warm summers, cool winters and coastal storm impacts possible.
New Castle is part of the South weather region. The forecast point is near 39.66°N latitude and 75.57°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Light rain and 54°F in New Castle, DE. Today's high is 63°F with a 86% rain chance. Winds are around 18 mph with gusts near 38 mph. Relative humidity is 91%, pressure is 29.88 inHg, and visibility is about 5 miles.
Sunrise is at 06:53 AM and sunset is at 06:53 PM. Tomorrow's forecast calls for Light drizzle with a high near 58°F and a low near 56°F. The maximum rain chance is 89%.
