More than 129 million people across more than 20 states are under life-threatening heat alerts from the South to the East ...

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

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.

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 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 ...

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 ...

A heat advisory continued Thursday for much of the Chicago area, with high temperatures in the 90s and peak heat index values ...

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

Cruel heat is baking southern Europe as the continent slips deeper into summer. In homes and offices, air conditioning is ...

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.

Chicagoans are stepping up to help one another during another heat wave in the city. The temperature reached 94 degrees ...

Chicago is sweltering under a heat dome with temperatures that feel like 110 degrees or higher. It's a reminder of the city's ...