| National Weather Service Forecast for:
New Castle DE Issued by: National Weather Service Philadelphia, PA |
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| Updated: 4:08 am EDT May 29, 2026 | ||||||||||||||||||
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| Today |
Sunny, with a high near 76. Northwest wind 5 to 10 mph becoming west in the afternoon. |
| Tonight |
Mostly clear, with a low around 56. Southwest wind around 10 mph becoming northwest after midnight. |
| Saturday |
Increasing clouds, with a high near 69. Breezy, with a north wind 15 to 20 mph. |
| Saturday Night |
Partly cloudy, with a low around 52. North wind 5 to 10 mph becoming light northeast after midnight. |
| Sunday |
Sunny, with a high near 73. Calm wind becoming northwest around 5 mph in the afternoon. |
| Sunday Night |
Partly cloudy, with a low around 57. |
| Monday |
Mostly sunny, with a high near 76. |
| Monday Night |
Mostly clear, with a low around 56. |
| Tuesday |
A chance of showers after 2pm. Mostly sunny, with a high near 73. Chance of precipitation is 30%. |
| Tuesday Night |
A chance of showers before 8pm. Partly cloudy, with a low around 56. Chance of precipitation is 30%. |
| Wednesday |
Mostly sunny, with a high near 73. |
| Wednesday Night |
Mostly clear, with a low around 57. |
| Thursday |
Sunny, with a high near 78. |
Forecast from NOAA-NWS for New Castle DE.
