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

Areas of Severe Thunderstorms and Excessive Rainfall Thursday

Severe thunderstorms posing a risk for strong gusts and/or large hail are possible across portions of the northern and central Plains, the Lower Missouri to Lower Ohio Valleys, and across the Mid-Atlantic Thursday afternoon and evening. Excessive rainfall may bring flash and urban flooding over the Mid-Mississippi and Ohio Valleys, and Mid-Atlantic on Thursday. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

77°F

25°C

Humidity 74%
Wind Speed S 10 mph
Barometer 29.99 in (1015.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 8 Jul 8:51 pm EDT
Extended Forecast for

New Castle DE

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Patchy fog before 10am. High near 84. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog
    then T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between three quarters and one inch possible.

    Low: 72 °F

    T-storms
    Likely and
    Patchy Fog

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 87. West wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Mostly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. West wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 71. South wind around 5 mph.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5pm. Patchy fog before 10am. High near 84. South wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Showers and thunderstorms likely before midnight, then a slight chance of showers between midnight and 1am. Patchy fog after 9pm. Otherwise, mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts between three quarters and one inch possible.
Friday
Showers likely and possibly a thunderstorm after 2pm. Increasing clouds, with a high near 87. West wind 5 to 10 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 thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. West wind around 5 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 84.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Sunny, with a high near 89.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 93.
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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:
4:08 pm EDT Jul 8, 2026
Forecast Valid:
9pm EDT Jul 8, 2026-6pm EDT Jul 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation