Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Wilmington Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Mostly Cloudy

85°F

29°C

Humidity 43%
Wind Speed Calm
Barometer 30.04 in (1017.0 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 21 Aug 5:51 pm EDT
Extended Forecast for

Montchanin DE

  • Tonight

    Tonight: Increasing clouds, with a low around 64. Calm wind.

    Low: 64 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Showers likely, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 77. East wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am.  Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind around 5 mph.  Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. West wind around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 64. Calm wind.
Saturday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 77. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am. Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 82. West wind around 5 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 62. West wind around 5 mph.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 61.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Montchanin DE
 39.8°N 75.53°W (Elev. 299 ft)
4:08 pm EDT Aug 21, 2026
6pm EDT Aug 21, 2026-6pm EDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database