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

Briefing for Impacts from Hurricane Erin through Friday

Hurricane Erin is expected to bring several coastal and marine hazards to the coasts of New Jersey and Delaware through Friday. Widespread coastal flooding, high surf, high risk of rip currents, beach erosion, and dangerous marine conditions are forecast. View this briefing for details on these threats. Read More >

Hazardous Weather Conditions

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Overcast

64°F

18°C

Humidity 87%
Wind Speed NE 18 G 25 mph
Barometer 29.94 in (1013.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 21 Aug 2:51 am EDT
Extended Forecast for

Montchanin DE

Coastal Flood Advisory August 21, 09:00pm until August 23, 02:00am
Click here for hazard details and duration
Coastal Flood Advisory

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Cloudy, with a low around 64. Northeast wind around 10 mph. Chance of precipitation is 20%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A slight chance of showers between 10am and 11am. Mostly cloudy, with a high near 72. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 60. North wind around 10 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 81. North wind around 10 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 61. East wind around 5 mph becoming southwest after midnight.

    Low: 61 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Saturday Night

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

    Low: 66 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.

    High: 82 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Showers
    Likely

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Cloudy, with a low around 64. Northeast wind around 10 mph. Chance of precipitation is 20%.
Thursday
A slight chance of showers between 10am and 11am. Mostly cloudy, with a high near 72. Northeast wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 60. North wind around 10 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 81. North wind around 10 mph.
Friday Night
Clear, with a low around 61. East wind around 5 mph becoming southwest after midnight.
Saturday
Sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 82. Chance of precipitation is 50%.
Sunday Night
Showers likely, mainly between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Monday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Montchanin DE
 39.8°N 75.51°W (Elev. 266 ft)
Last Update:
4:10 pm EDT Aug 20, 2025
Forecast Valid:
2am EDT Aug 21, 2025-6pm EDT Aug 27, 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