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Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

88°F

31°C

Humidity 61%
Wind Speed SW 8 mph
Barometer 29.86 in (1011.0 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Aug 5:51 pm EDT
Extended Forecast for

Wilmington, New Castle County Airport DE

  • This Afternoon

    This Afternoon: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind around 5 mph. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 69. West wind around 5 mph becoming south in the evening. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers before 3pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 76. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 76 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 65. East wind 5 to 10 mph. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 78. East wind around 10 mph.

    High: 78 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Southwest wind around 5 mph. Chance of precipitation is 20%.
Tonight
A chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 69. West wind around 5 mph becoming south in the evening. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
A slight chance of showers before 3pm, then a slight chance of showers after 4pm. Mostly cloudy, with a high near 76. Northeast wind 10 to 15 mph. Chance of precipitation is 20%.
Monday Night
A chance of showers, mainly between 8pm and 2am. Mostly cloudy, with a low around 65. East wind 5 to 10 mph. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 78. East wind around 10 mph.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 65.
Saturday
Mostly sunny, with a high near 84.
Saturday Night
A chance of showers. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Wilmington, New Castle County Airport DE
 39.67°N 75.62°W (Elev. 49 ft)
Last Update:
4:11 pm EDT Aug 17, 2025
Forecast Valid:
5pm EDT Aug 17, 2025-6pm EDT Aug 24, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation