Besides temperatures feeling in the high 90s, Chicago and surrounding areas are under an air quality alert until midnight, ...

Sensitive groups are advised to stay indoors and limit outdoor activities as pollution and ozone levels spike to unhealthy ...

The Chicago area recorded ozone levels of 156 late Monday afternoon. Levels above 100 are considered unhealthy. Residents ...

Today is warm with an air quality alert in effect. Sensitive groups should take it easy again as we have elevated ozone ...

Air quality in the Chicago area has remained poor for three days in a row, the NBC 5 Storm Team reported Wednesday morning.

Delta Air Lines is shaking up the Chicago-Los Angeles air travel market, filling a notable gap in its domestic network.

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

SneakerCon Chicago delivered hype, heat, and a reminder that the Air Jordan 4 Black Cat is still the king of triple black ...

A clash of air masses on Wednesday will result in the threat of severe storms from Milwaukee and Chicago westward to Denver and the eastern Rockies.

Tool shows history of heat-related deaths, demographics, land use and air conditioning access across communities.

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