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Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Hazardous Weather Conditions

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Overcast

75°F

24°C

Humidity 82%
Wind Speed Calm
Barometer 29.99 in (1015.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 20 Aug 9:51 am EDT
Extended Forecast for

Wilmington, New Castle County Airport DE

Flood Watch August 20, 12:00pm until August 21, 02:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Showers and thunderstorms, mainly after 2pm. High near 83. East wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 83 °F

    Slight Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 10pm. Low around 65. North wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    T-storms then
    Slight Chance
    T-storms

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 81. Northeast wind 5 to 10 mph.

    High: 81 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 67. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms, mainly after 2pm. High near 83. East wind 5 to 10 mph becoming southeast in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and thunderstorms, mainly before 10pm. Low around 65. North wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 81. Northeast wind 5 to 10 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Increasing clouds, with a low around 67. East wind 5 to 10 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Sunday Night
A chance of showers before 8pm. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wilmington, New Castle County Airport DE
 39.67°N 75.62°W (Elev. 49 ft)
Last Update:
4:08 am EDT Aug 20, 2026
Forecast Valid:
10am EDT Aug 20, 2026-6pm EDT Aug 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