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

Hot Weather in the West; Heavy Rainfall and Flooding in the Southwest

Hot to extremely hot temperatures are in place much of this week across parts of California and the interior Northwest U.S, with the Pacific Northwest carrying the potential for record-breaking high temperatures. Monsoonal moisture over the Southwest U.S. may lead to heavy rainfall and instances of flash flooding through Wednesday. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

A Few Clouds

73°F

23°C

Humidity 53%
Wind Speed E 10 mph
Barometer 30.16 in (1021.4 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 2 Sep 10:51 am EDT
Extended Forecast for

Port Penn DE

  • Today

    Today: Mostly sunny, with a high near 77. East wind around 5 mph.

    High: 77 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. Southeast wind around 5 mph becoming calm.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Calm wind becoming southeast around 5 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 77. East wind around 5 mph.
Tonight
Mostly clear, with a low around 55. Southeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 79. Calm wind becoming southeast around 5 mph.
Wednesday Night
Mostly clear, with a low around 59. Southeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 67.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 2am. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 74.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Port Penn DE
 39.46°N 75.68°W (Elev. 49 ft)
Last Update:
4:14 am EDT Sep 2, 2025
Forecast Valid:
11am EDT Sep 2, 2025-6pm EDT Sep 8, 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