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

Briefing for Heat, Severe Storm, and Flash Flood Risks through Thursday

Dangerously hot and humid conditions are expected through Wednesday. There is also a threat of isolated severe thunderstorms on Wednesday. Flash flooding from locally heavy rainfall is possible on Thursday. See this briefing for details on these hazards. Read More >

Hazardous Weather Conditions

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

A Few Clouds

92°F

33°C

Humidity 60%
Wind Speed SE 8 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 30 Jul 12:51 pm EDT
Extended Forecast for

Claymont DE

Heat Advisory July 30, 01:33pm until July 30, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 30, 01:33pm until July 30, 08:00pm

    NOW until 8:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 96 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 76. Southwest wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 90. Southeast wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    Chance
    T-storms then
    Heavy Rain

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 68. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 68 °F

    Heavy Rain

  • Friday

    Friday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 96. Heat index values as high as 103. South wind around 5 mph.
Tonight
Mostly clear, with a low around 76. Southwest wind around 5 mph.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a high near 90. Southeast wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 68. Northeast wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Northeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers before 2am. Mostly cloudy, with a low around 62. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Claymont DE
 39.79°N 75.48°W (Elev. 102 ft)
Last Update:
4:11 am EDT Jul 30, 2025
Forecast Valid:
1pm EDT Jul 30, 2025-6pm EDT Aug 5, 2025
 
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