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

Severe Thunderstorms, Heavy Rainfall and Dangerous Heat

Severe thunderstorms are expected today and Friday from the upper Midwest, central Great Lakes into the Ohio and mid-Mississippi Valley's. In addition, heavy rainfall threat increases on Friday across the Ohio Valley. Meanwhile, early summer-like heat wave across portions of southern Texas with new daily records are forecast today and through the weekend; The heat spreads across the Gulf States. Read More >

Hazardous Weather Conditions

Current conditions at

Georgetown - Delaware Coastal Airport (KGED)

Lat: 38.69°NLon: 75.36°WElev: 46ft.

Fog/Mist

62°F

17°C

Humidity 96%
Wind Speed Calm
Barometer 29.79 in (1008.6 mb)
Dewpoint 61°F (16°C)
Visibility 6.00 mi
Last update 16 May 4:54 am EDT
Extended Forecast for

Nassau DE

Dense Fog Advisory May 16, 05:01am until May 16, 11:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory May 16, 05:01am until May 16, 11:00am

    NOW until 11:00am Fri

    Dense Fog Advisory

  • Today

    High: 81 °F

    Chance
    T-storms and
    Areas Fog

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly after 8pm. Areas of fog between midnight and 1am. Otherwise, mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms and
    Areas Fog

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. Southwest wind 10 to 15 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 62. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 80. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 80 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 11am. Areas of fog before 8am. Otherwise, partly sunny, with a high near 81. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms, mainly after 8pm. Areas of fog between midnight and 1am. Otherwise, mostly cloudy, with a low around 65. Southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 85. Southwest wind 10 to 15 mph. 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 62. Southwest wind 5 to 10 mph becoming northwest after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Sunny, with a high near 80. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Mostly clear, with a low around 58.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Wednesday
Showers likely. Mostly cloudy, with a high near 67. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Thursday
A chance of showers. Mostly cloudy, with a high near 69. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Nassau DE
 38.75°N 75.18°W (Elev. 20 ft)
Last Update:
4:13 am EDT May 16, 2025
Forecast Valid:
5am EDT May 16, 2025-6pm EDT May 22, 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