More than 150 million Americans are under the highest-level extreme heat alerts during a wave of above-average temperatures.

Residents in northern Illinois ... Chicagoland area is expected to degrade throughout the day. Here's what to know. The AQI was already at 102 in the north and west suburbs of Chicago as of ...

Donation Options Search Search Search A tornado watch in effect for parts of Illinois, including the Chicago area, ended at 8:45 p.m. Thurssday, the weather service said. A severe thunderstorm ...

The Illinois Environmental Protection Agency declared an Air Pollution Action Day today in the Chicago Metropolitan area due to elevated particle pollution caused by Canadian wildfire smoke.