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

83°F

28°C

Humidity 61%
Wind Speed W 9 mph
Barometer 29.90 in (1012.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 14 Oct 3:51 pm EDT
Extended Forecast for

New Castle DE

  • This Afternoon

    This Afternoon: A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. West wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 59. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 66. Northeast wind 5 to 10 mph.

    High: 66 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers, mainly after midnight. Mostly cloudy, with a low around 59. Southeast wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: A slight chance of showers, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 79. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 51. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers and
    Breezy

  • Saturday

    Saturday: A chance of showers before 8am. Mostly sunny, with a high near 55. Breezy. Chance of precipitation is 30%.

    High: 55 °F

    Breezy.
    Chance
    Showers then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. West wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 59. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 66. Northeast wind 5 to 10 mph.
Thursday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 59. Southeast wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of showers, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 79. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and possibly a thunderstorm. Low around 51. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers before 8am. Mostly sunny, with a high near 55. Breezy. Chance of precipitation is 30%.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 58.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 67.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Sunny, with a high near 68.
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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:
4:11 pm EDT Oct 14, 2026
Forecast Valid:
4pm EDT Oct 14, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation