Major Heat Wave Expected for Two-Thirds of the U.S.

A dangerous and widespread summer heat wave is expected through this upcoming weekend across much of the Central and Eastern U.S. A large dome of high pressure will allow high temperatures to surge into the 90s and 100s in many locations, while heat indices will top 100 and approach 110 degrees or higher. There also will be no relief at night, as low temperatures remain in the upper 70s and 80s. Read More >

Current conditions at

Wilmington, New Castle County Airport (KILG)

Lat: 39.67°NLon: 75.61°WElev: 72ft.

Fair

28°C

82°F

Humidity 82%
Wind Speed Calm
Barometer 1017.3 mb (30.05 in)
Dewpoint 24°C (76°F)
Visibility 16 km
Heat Index32°C (89°F)
Last update 16 Jul 10:51 pm EDT
Extended Forecast for

Montchanin DE

Excessive Heat Warning July 17, 08:00am until July 21, 10:00pm
Click here for hazard details and duration
Excessive Heat Warning
  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 5am.  Mostly cloudy, with a low around 24. Southwest wind 5 to 10 km/h.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 24 °C

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 34. Heat index values as high as 39. Southwest wind 5 to 14 km/h.  Chance of precipitation is 30%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Partly Sunny
    then Chance
    T-storms

    High: 34 °C

  • Wednesday
    Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 3am, then a chance of showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 24. Southwest wind 6 to 11 km/h becoming light and variable  after midnight.  Chance of precipitation is 70%. New rainfall amounts between 2 and 3 cm possible.

    Heavy Rain
    and Patchy
    Fog

    Low: 24 °C

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Some of the storms could produce heavy rainfall.  Patchy fog before 9am.  Otherwise, mostly cloudy, with a high near 31. West wind 5 to 8 km/h.  Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.

    Heavy Rain
    and Patchy
    Fog then
    Heavy Rain

    High: 31 °C

  • Thursday
    Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 3am. Some of the storms could produce heavy rainfall.  Mostly cloudy, with a low around 23. Calm wind.  Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Heavy Rain
    then Chance
    T-storms

    Low: 23 °C

  • Friday

    Friday: Widespread haze after 9am. Mostly sunny, with a high near 35.

    Haze

    High: 35 °C

  • Friday
    Night

    Friday Night: Widespread haze before 9pm. Mostly clear, with a low around 26.

    Haze then
    Mostly Clear

    Low: 26 °C

  • Saturday

    Saturday: Widespread haze between 9am and 3pm. Mostly sunny and hot, with a high near 37.

    Haze

    High: 37 °C

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 26.

    Partly Cloudy

    Low: 26 °C

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 5am. Mostly cloudy, with a low around 24. Southwest wind 5 to 10 km/h. Chance of precipitation is 20%.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 34. Heat index values as high as 39. Southwest wind 5 to 14 km/h. Chance of precipitation is 30%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 3am, then a chance of showers and thunderstorms after 3am. Some of the storms could produce heavy rainfall. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 24. Southwest wind 6 to 11 km/h becoming light and variable after midnight. Chance of precipitation is 70%. New rainfall amounts between 2 and 3 cm possible.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 31. West wind 5 to 8 km/h. Chance of precipitation is 60%. New rainfall amounts between 5 and 7.5 mm possible.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 3am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Friday
Widespread haze after 9am. Mostly sunny, with a high near 35.
Friday Night
Widespread haze before 9pm. Mostly clear, with a low around 26.
Saturday
Widespread haze between 9am and 3pm. Mostly sunny and hot, with a high near 37.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny and hot, with a high near 36.
Sunday Night
Partly cloudy, with a low around 24.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 33. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 31. Chance of precipitation is 30%.
Click Map For Forecast
Point Forecast:
Montchanin DE
 39.78°N 75.54°W (Elev. 77 m)
9:41 pm EDT Jul 16, 2019
11pm EDT Jul 16, 2019-6pm EDT Jul 23, 2019
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database