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

Hot Temperatures in the West; Heavy Rainfall and Flooding Potential in the Southwest

Hot to extremely hot temperatures are in place across coastal southern California again today and the interior Northwest U.S into Thursday, with the Pacific Northwest carrying the potential for record-breaking high temperatures. A combination of monsoonal moisture and tropical moisture ahead of tropical cyclone Lorena will bring heavy rainfall and the potential for flooding through the week. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

71°F

22°C

Humidity 68%
Wind Speed Calm
Barometer 30.00 in (1015.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 3 Sep 9:51 am EDT
Extended Forecast for

Montchanin DE

  • Today

    Today: Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph.

    High: 79 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. South wind around 5 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers after 2pm. Mostly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 63. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Sunny, with a high near 85. Southwest wind 5 to 10 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 79. Calm wind becoming south around 5 mph.
Tonight
Mostly clear, with a low around 59. South wind around 5 mph.
Thursday
A slight chance of showers after 2pm. Mostly sunny, with a high near 83. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday Night
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 63. South wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 85. Southwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 68.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 85. Chance of precipitation is 50%.
Saturday Night
A chance of showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Montchanin DE
 39.8°N 75.53°W (Elev. 299 ft)
Last Update:
5:43 am EDT Sep 3, 2025
Forecast Valid:
10am EDT Sep 3, 2025-6pm EDT Sep 9, 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