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New Castle County Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Partly Sunny | Mostly Cloudy | Mostly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Partly Sunny | Mostly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 70°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C |
| POP: 40% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 AM EDT Thu Sep 24 2026 
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Issued: 728 AM EDT Thu Sep 24 2026
Key Messages
1. Low pressure developing well off the East Coast will strengthen and move north towards the Mid Atlantic coast and southern New England this weekend. This will bring potential for rain across the region and strong winds near the coast.
2. Multiple rounds of significant tidal flooding expected into this weekend. Coastal Flood Warnings and Advisories remain in effect.
3. Dangerous rip currents and high surf are expected at the Jersey Shore and Delaware Beaches through Saturday. Beach e...