National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Mostly Cloudy

30°F

-1°C

Humidity 56%
Wind Speed Calm
Barometer 30.24 in (1024.0 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 4 Jan 9:51 pm EST
Extended Forecast for

New Castle DE

  • Tonight

    Tonight: Partly cloudy, with a low around 25. Northwest wind around 5 mph.

    Low: 25 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 40. Light and variable wind becoming south 5 to 10 mph in the morning.

    High: 40 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 48. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 48 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 39. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 20%.

    Low: 39 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.

    Low: 42 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 25. Northwest wind around 5 mph.
Monday
Mostly cloudy, with a high near 40. Light and variable wind becoming south 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 32. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Mostly cloudy, with a high near 48. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 39. Southeast wind 5 to 10 mph becoming west after midnight. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Friday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.
Saturday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 50%.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 43.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
New Castle DE
 39.67°N 75.56°W (Elev. 3 ft)
Last Update:
4:11 pm EST Jan 4, 2026
Forecast Valid:
10pm EST Jan 4, 2026-6pm EST Jan 11, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation