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 >

Hazardous Weather Conditions

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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 Index	98°F (37°C)
Last update	19 Jul 10:52 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast

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

Mostly Sunny
High: 94 °F
Tonight

Mostly Clear
Low: 79 °F
Saturday

Mostly Sunny
then Slight
Chance
T-storms
High: 96 °F
Saturday
Night

T-storms
Likely
Low: 72 °F
Sunday

Chance
T-storms
High: 82 °F
Sunday
Night

Partly Cloudy
Low: 63 °F
Monday

Sunny
High: 79 °F
Monday
Night

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.