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 >

Current conditions at

Wilmington, New Castle County Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

65°F

18°C

Humidity 93%
Wind Speed SE 5 mph
Barometer 29.82 in (1009.9 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 15 May 11:51 pm EDT
Extended Forecast for

Winterthur DE

  • Overnight

    Overnight: A chance of showers, with thunderstorms also possible after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms, mainly before 3pm. Areas of fog before noon. High near 81. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers and
    Areas Fog
    then T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 65. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 83. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers before 8pm. Mostly clear, with a low around 60. West wind around 10 mph. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, with thunderstorms also possible after 5am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 61. Calm wind. Chance of precipitation is 30%.
Friday
Showers and thunderstorms, mainly before 3pm. Areas of fog before noon. High near 81. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 65. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 83. Southwest wind 5 to 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers before 8pm. Mostly clear, with a low around 60. West wind around 10 mph. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 71.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 52. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 50%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Winterthur DE
 39.78°N 75.6°W (Elev. 289 ft)
Last Update:
10:13 pm EDT May 15, 2025
Forecast Valid:
12am 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