Chicago weather: Heat Advisory remains in effect, thunderstorms possible Thursday with heat index over 100 forecast

The Chicago area is gearing up for another day of potentially dangerous high temperatures on Thursday, with the heat index expected to soar above 100. Additionally, some storms are anticipated to move through the region.

Much of the area remains under a Heat Advisory until 10 p.m. Thursday.

High temperatures forecast for the area are in the mid 90s, with a heat index between 100-108 degrees.

A Severe Thunderstorm Warning was issued for Cook, Kendall and Will counties in Illinois and Lake County, Indiana until 3:30 p.m.

A Severe Thunderstorm Warning was issued for DuPage and Will counties until 3 p.m.

A Severe Thunderstorm Watch has been issued for several counties in Illinois, including Cook, DuPage, Grundy, Kane, Kankakee, Kendall, LaSalle, and Will, as well as Benton, Jasper, Lake, Newton, and Porter counties in Indiana. This watch is in effect until 9 p.m.

Chicago Weather Update: Heat Advisory Continues, Possible Thunderstorms on Thursday as Heat Index Exceeds 100

According to ABC7 Accuweather Meteorologist Jaisol Martinez, there may be an isolated storm in the early afternoon, but the primary period for storm activity is expected to be between 5 and 10 p.m.

How to stay cool in Chicago area amid rising temperatures this summer: LIST

Chicago Power Outages

As the temperature climbs once again, people are enjoying some much needed AC after going without it.

The sweet sounds of working AC units silently hum on Drummond Street, near LeClaire in the city’s Belmont Cragin neighborhood.

Power is back here after residents went without it for hours overnight as temperatures hovered at uncomfortable levels during this heat advisory.

“Oh no, not now. It was way hot. No way to turn on a fan,” Joann Maldonado, who lost power, said.

Joann Maldonado spoke with ABC7 after power was restored and described how she felt inside her home.

“Very stuffy to the point I walked out the back door, opened the back door to see how it was outside and it was pretty much the same,” she said.

“I said, ‘it’s not us. Take a look. It’s the whole neighborhood,” Robert Flores said.

Flores said he ended up sleeping on the couch overnight, trying to get some sleep in the heat before leaving on a big trip to Alaska Friday.

“I was worried that it would go too long I didn’t want to be all exhausted and not get a good night’s sleep,” Flores said.

ComEd crews could be seen diligently working through the early morning hours, working to get power restored as quickly as possible.

“We’ve don’t a lot of work to prepare our crews in order to be responsive to the hot summer weather,” ComEd VP of operations Nichole Owens said.

Owens says there’s staffing around the clock to quickly respond to any outages.

“We have drilled this,” Owens said. “We have trained our employees how to respond to outages especially given these conditions to make sure customers are safe and also to make sure our crews are safe.”

According to the ComEd power outage map, there’s been substantial progress from earlier Thursday morning, when more than 800 customers in Cook County were without power.

OEMC is working to keep people out and about safe in the heat with cooling centers across the city. Cooling centers open at 9 a.m. Wednesday and Thursday and close at 5 p.m. both days, except for the South Kedzie location, which is open until 8 p.m.

People can also find relief from the heat in city libraries, police stations and park district buildings.

The best way to avoid heat related illness is to limit your time outdoors, stay out of the sun, and drinks lots of water and fluids to remain hydrated. People should also check on relatives and neighbors, especially if they are elderly.

For those who can’t stay inside or their home is not sufficiently cooled, there areresources around Chicago to help.

Cook County Radar | DuPage County Radar | Will County Radar | Lake County Radar (IL) | Kane County Radar | Northwest Indiana Radar


Copyright © 2025 WLS-TV. All Rights Reserved.

You May Also Like

Executions set for Oklahoma murderer James Pavatt and Texas killer Josh Rubio

Oklahoma Murderer James Pavatt, Texas Killer Josh Rubio Face Execution

Two men were scheduled to be executed in the United States on…
NYC dad with pregnant wife ID'd as Brooklyn building collapse victim

Brooklyn Dad Killed in Building Collapse Leaves Pregnant Wife

A father whose wife was days away from giving birth was among…
Report: Alice Huang Is in China, Jensen Huang Is in Hot Water, and Nvidia Has Some Explaining to Do

Report: Alice Huang in China as Jensen Huang Faces Nvidia Scrutiny

Alice Huang, the businesswoman U.S. officials suspect of spying for China, is…
'Fake' war hero allegedly posed as wounded Purple Heart recipient while stealing $81K from veterans group

Man Accused of Posing as Wounded Purple Heart Recipient, Stealing $81K

An alleged scheme portraying a Long Island man as a decorated combat…
MICHAEL RUIZ: Texas police ID man charged with assault in UT Tyler Turning Point USA attack caught on video

Texas Police ID Michael Ruiz Charged in UT Tyler TPUSA Assault

Texas authorities have identified the man accused of attacking students at a…
Texas man Ciro Tomlian identified as suspect in TPUSA UT attack

Texas Man Ciro Tomlian Identified as Suspect in Turning Point USA Utah Attack

Texas authorities have identified the man accused of assaulting students at a…
Democrat Colom will be Mississippi's first Black senator in more than 100 years, AP projects

AP projects Democrat Colom will become Mississippi’s first Black US senator in over 100 years

Democrat Scott
At least 2 dead, 17 injured after NYC building collapse

NYC Building Collapse Kills at Least 2, Injures 17

At least two people died and more than a dozen others were…
Veterans Day begins with a solemn ceremony at Ground Zero

Veterans Day Begins With Solemn Ground Zero Ceremony

Veterans Day began Wednesday with a solemn ceremony at Ground Zero, honoring…
Inside the $4.6M mid-century mansion with a gruesome history

Inside a $4.6M Mid-Century Mansion With a Gruesome Past

Perched on a private ridge in the affluent Soquel Hills, with sweeping…
Arizona State University triathlete Hannah Henry's killer Eric Hodge sentenced for fatal hit-and-run

Eric Hodge Sentenced in Fatal Hit-and-Run That Killed Arizona State Triathlete Hannah Henry

The family of Hannah Henry, an Arizona State University triathlon champion killed…
NYC parents slam construction of men's homeless shelter near Brooklyn middle school

NYC Parents Protest Men’s Shelter Near Brooklyn Middle School

Parents in Brooklyn’s Canarsie neighborhood are demanding answers from New York City…