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.

Fair

42°F

6°C

Humidity 73%
Wind Speed S 5 mph
Barometer 30.14 in (1020.5 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 20 Mar 8:51 am EDT
Extended Forecast for

New Castle DE

  • Today

    Today: Increasing clouds, with a high near 64. South wind 5 to 15 mph.

    High: 64 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 50. Southwest wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 59. North wind around 10 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43. North wind around 5 mph becoming southeast after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68. Southwest wind 10 to 15 mph.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers before 2pm. Partly sunny, with a high near 57. Chance of precipitation is 40%.

    High: 57 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 64. South wind 5 to 15 mph.
Tonight
Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 50. Southwest wind 5 to 15 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 59. North wind around 10 mph.
Saturday Night
Mostly cloudy, with a low around 43. North wind around 5 mph becoming southeast after midnight.
Sunday
Partly sunny, with a high near 68. Southwest wind 10 to 15 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers before 2pm. Partly sunny, with a high near 57. Chance of precipitation is 40%.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Partly sunny, with a high near 53.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
New Castle DE
 39.67°N 75.56°W (Elev. 3 ft)
Last Update:
4:09 am EDT Mar 20, 2026
Forecast Valid:
9am EDT Mar 20, 2026-6pm EDT Mar 26, 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