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

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

73°F

23°C

Humidity 94%
Wind Speed NW 3 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 18 Sep 7:51 am EDT
Extended Forecast for

3 Miles WSW Wilmington, New Castle County Airport DE

  • Today

    Today: Mostly sunny, with a high near 84. North wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 61. North wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 78. Northeast wind 5 to 10 mph.

    High: 78 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 63. East wind around 5 mph.

    Low: 63 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 65. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 84. North wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 61. North wind around 5 mph.
Saturday
Partly sunny, with a high near 78. Northeast wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 63. East wind around 5 mph.
Sunday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 78. South wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 65. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers. Mostly cloudy, with a high near 73. Chance of precipitation is 40%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Thursday
A chance of showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Wilmington, New Castle County Airport DE
 39.68°N 75.64°W (Elev. 46 ft)
Last Update:
4:09 am EDT Sep 18, 2026
Forecast Valid:
8am EDT Sep 18, 2026-6pm EDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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