Dangerous Heat Wave from the Midwest to East Coast

A large ridge of high pressure extending from the Central to Eastern U.S. will deliver a dangerous summer heat wave through the weekend. Widespread excessive heat warnings and heat advisories already cover the Eastern two-thirds of the country. A number of record highs and overnight warm minimum temperatures are likely. Heat indices will surge past 100 degrees and approach the 110s. Heat Safety! Read More >

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Fair

88°F

31°C

Humidity 66%
Wind Speed SW 15 mph
Barometer 29.84 in (1009.7 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index98°F (37°C)
Last update 19 Jul 10:52 am CDT
Extended Forecast for

Lisle IL

Excessive Heat Warning until July 20, 07:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until July 20, 07:00pm

    NOW until
    7:00pm Sat

    Excessive Heat Warning

  • Today

    Today: Mostly sunny, with a high near 94. Heat index values as high as 112. Southwest wind around 15 mph, with gusts as high as 20 mph.

    Mostly Sunny

    High: 94 °F

  • Tonight

    Tonight: Mostly clear, with a low around 79. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Mostly Clear

    Low: 79 °F

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 4pm.  Mostly sunny and hot, with a high near 96. Heat index values as high as 108. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Mostly Sunny
    then Slight
    Chance
    T-storms

    High: 96 °F

  • Saturday
    Night

    Saturday Night: Showers and thunderstorms likely, mainly after 1am.  Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 72 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 82. North wind around 5 mph, with gusts as high as 15 mph.

    Chance
    T-storms

    High: 82 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

  • Monday

    Monday: Sunny, with a high near 79.

    Sunny

    High: 79 °F

  • Monday
    Night

    Monday Night: Clear, with a low around 59.

    Clear

    Low: 59 °F

Detailed Forecast

Today
Mostly sunny, with a high near 94. Heat index values as high as 112. Southwest wind around 15 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 79. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 108. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Showers and thunderstorms likely, mainly after 1am. Partly cloudy, with a low around 72. Southwest wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. North wind around 5 mph, with gusts as high as 15 mph.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Sunny, with a high near 79.
Monday Night
Clear, with a low around 59.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 65.
Thursday
Sunny, with a high near 86.
Click Map For Forecast
Point Forecast:
Lisle IL
 41.79°N 88.09°W
10:16 am CDT Jul 19, 2019
11am CDT Jul 19, 2019-6pm CDT Jul 25, 2019
 
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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