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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

62°F

17°C

Humidity 40%
Wind Speed NW 9 mph
Barometer 29.93 in (1013.5 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 21 Mar 2:51 pm EDT
Extended Forecast for

Winterthur DE

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. North wind around 5 mph becoming south after midnight.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 45. North wind around 5 mph becoming northeast in the evening. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    Low: 45 °F

    Showers

  • Monday

    Monday: Showers, mainly before 8am. High near 53. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Showers then
    Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 31. North wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 56.

    High: 56 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 43. North wind around 5 mph becoming south after midnight.
Sunday
Patchy fog before 7am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 72. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 45. North wind around 5 mph becoming northeast in the evening. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Monday
Showers, mainly before 8am. High near 53. Northwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Mostly clear, with a low around 31. North wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 56.
Wednesday Night
Mostly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 60.
Thursday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 54.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Mostly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
Winterthur DE
 39.81°N 75.62°W (Elev. 397 ft)
Last Update:
2:23 pm EDT Mar 21, 2026
Forecast Valid:
3pm EDT Mar 21, 2026-6pm EDT Mar 28, 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