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

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

Scattered showers and thunderstorms with locally heavy rainfall may lead to areas of flash flooding through tonight. There is potential for isolated severe thunderstorms with damaging wind gusts tonight and Thursday. Hot and very humid conditions are expected Thursday. See this briefing for details on these threats. Read More >

Hazardous Weather Conditions

Current conditions at

Georgetown - Delaware Coastal Airport (KGED)

Lat: 38.69°NLon: 75.36°WElev: 46ft.

Fair

87°F

31°C

Humidity 67%
Wind Speed SW 9 mph
Barometer 29.97 in (1014.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Jul 5:54 pm EDT
Extended Forecast for

Seaford DE

Heat Advisory July 17, 10:00am until July 17, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly between midnight and 1am. Mostly cloudy, with a low around 77. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 77 °F

    Chance
    T-storms

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 77. Southwest wind around 5 mph. Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Northwest wind around 5 mph. Chance of precipitation is 20%.

    High: 89 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.

    High: 88 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly between midnight and 1am. Mostly cloudy, with a low around 77. Southwest wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 77. Southwest wind around 5 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Northwest wind around 5 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers, with thunderstorms also possible after 8pm. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 68.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Seaford DE
 38.65°N 75.63°W (Elev. 23 ft)
Last Update:
4:12 pm EDT Jul 16, 2025
Forecast Valid:
6pm EDT Jul 16, 2025-6pm EDT Jul 23, 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