Meteorologist David Yeomans has the extended forecast.

Wildfire smoke degrades air quality in swaths of Ontario, with Toronto ranking among the worst in the world on Monday.

An air quality alert in the Chicago area will stretch into a third day as pollutants continue to linger in the air at high ...

Chicago's air quality alert continues due to Canadian wildfires, affecting sensitive groups and prompting health advisories.

Chicago faces a heat wave with poor air quality due to wildfire smoke and ozone; temperatures may hit mid-90s.

The Illinois EPA declared an Air Pollution Action Day in the Chicago metro area. See today's air quality index forecast for Illinois.

It will be very warm and humid in Chicagoland on Tuesday, with lakeside highs in the upper 80s and inland highs in the 90s.

A new report from CPD shows a sizable year-over-year increase in reports of both use-of-force and firearm-pointing incidents by Chicago cops. The upticks come as the department continues its efforts ...

Air quality advisories have been issued for parts of Michigan, Illinois, Indiana, Minnesota, New York, Vermont and Colorado on Tuesday.

Chicago faces poor air quality and sweltering heat today and tomorrow, followed by scattered storms heading into the weekend.