National Weather Service Forecast for: New Castle DE
Issued by: National Weather Service Philadelphia, PA
Updated: 10:14 pm EDT Apr 13, 2025
 
Tonight

Tonight: Increasing clouds, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.
Increasing
Clouds
 Monday

Monday: Partly sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Partly Sunny

 Monday
Night
Monday Night: A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 52. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Showers
Likely
 Tuesday

Tuesday: A slight chance of showers before 8am, then a slight chance of showers after 11am. Partly sunny, with a high near 63. Breezy, with a west wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 20%.
Slight Chance
Showers and
Breezy
 Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 42. West wind around 15 mph, with gusts as high as 30 mph.
Partly Cloudy

 Wednesday

Wednesday: Partly sunny, with a high near 52. Breezy.
Partly Sunny
and Breezy
 Wednesday
Night
Wednesday Night: Mostly clear, with a low around 38.
Mostly Clear

 Thursday

Thursday: Sunny, with a high near 59.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 39.
Mostly Clear
Lo 44 °F Hi 64 °F Lo 52 °F Hi 63 °F Lo 42 °F Hi 52 °F Lo 38 °F Hi 59 °F Lo 39 °F

 

Tonight
 
 Increasing clouds, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.
Monday
 
 Partly sunny, with a high near 64. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
 
 A chance of showers and thunderstorms before 11pm, then showers likely and possibly a thunderstorm between 11pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 52. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
 
 A slight chance of showers before 8am, then a slight chance of showers after 11am. Partly sunny, with a high near 63. Breezy, with a west wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 35 mph. Chance of precipitation is 20%.
Tuesday Night
 
 Partly cloudy, with a low around 42. West wind around 15 mph, with gusts as high as 30 mph.
Wednesday
 
 Partly sunny, with a high near 52. Breezy.
Wednesday Night
 
 Mostly clear, with a low around 38.
Thursday
 
 Sunny, with a high near 59.
Thursday Night
 
 Mostly clear, with a low around 39.
Friday
 
 Mostly sunny, with a high near 67.
Friday Night
 
 Mostly cloudy, with a low around 53.
Saturday
 
 A chance of showers. Partly sunny, with a high near 74. Chance of precipitation is 40%.
Saturday Night
 
 A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Sunday
 
 Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for New Castle DE.