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

Flash Flooding and Severe Thunderstorms Tuesday, July 28th - Wednesday, July 29th

Scattered to numerous thunderstorms are likely across the region Tuesday, July 28th through Wednesday, July 29th which will bring a risk of flash flooding and severe thunderstorms across the entire region. View this briefing for the details regarding these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

75°F

24°C

Humidity 82%
Wind Speed S 7 mph
Barometer 29.79 in (1008.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 27 Jul 10:51 pm EDT
Extended Forecast for

Wilmington DE

Flood Watch July 28, 08:00am until July 29, 02:00pm
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: Partly cloudy, with a low around 69. Calm wind becoming south around 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 81. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 81 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 1am, then a slight chance of showers after 2am. Low around 68. South wind around 5 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 68 °F

    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. 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: 82 °F

    Mostly Sunny
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Northwest 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: 67 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. Calm wind becoming south around 5 mph.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 81. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Tuesday Night
Showers and thunderstorms before 1am, then a slight chance of showers after 2am. Low around 68. South wind around 5 mph becoming west after midnight. Chance of precipitation is 80%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
A slight chance of showers before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. 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.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 67. Northwest 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.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 68.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly cloudy, with a low around 70.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Monday
A chance of showers. Partly 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 DE
 39.73°N 75.52°W (Elev. 3 ft)
Last Update:
4:08 pm EDT Jul 27, 2026
Forecast Valid:
11pm EDT Jul 27, 2026-6pm EDT Aug 3, 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