The researchers have been tracking the heat, and the way it impacts parts of the city differently, in a brand-new way that could ultimately provide relief for some Chicagoans.

Power lines are working overtime with the heat, and some are concerned that blackouts are possible with so much air conditioning running at homes and businesses.

As residents of Chicago's Northwest Side recovered from the sweltering heat, a round of storms Thursday caused a ground stop at O'Hare and Midway airports.

Everyone in the Chicago area was feeling the heat wave this week, and on the Evanston campus of Northwestern University, ...

Chicago faces a Heat Advisory with temperatures reaching 95°F and a heat index of 100-110°F until 10 p.m. Thursday.

People all over Chicago are looking for ways to beat the heat. WGN's Angelica Sanchez reports from Montrose Beach with how ...

The 96th Lake County Fair opened Wednesday in Grayslake amid a heat wave that caused organizers to move at least one activity ...

Incoming showers and storms from the east by afternoon were expected to bring relief from the sweltering heat wave, the NBC 5 ...

Yes, it is summer, and it can get awfully hot in the United States this time of year. However, this type of heat can kill. Over 99 million people across portions of at least 26 states are under heat ...

The heat dome won't dissipate soon. Dangerous heat is expected across parts of the Central and Southeast. through July, the weather service says. High temperatures will reach 100 degrees from Texas to ...

Power outages hit Belmont Cragin last night as extreme heat and heavy electricity use strained the grid. Residents endured hours without air conditioning, with some escaping to cooler basements or ...

Extreme heat is blanketing the Chicago area with heat index readings expected to be up to 110. There was also a Severe ...