Chicago’s air quality on Monday was considered “unhealthy for sensitive groups” as wildfire smoke from Canada blanketed the ...

Chicago faces an extreme heat watch with temperatures expected to reach mid-90s and heat indexes up to 115 degrees.

The building heat and humidity comes as Chicago's air quality readings early Monday morning were "unhealthy for sensitive groups," the website AirNow.gov said. The air quality ranked as a level three ...

Dangerous heat and humidity will move into the Chicago area forecast this week, the NBC 5 Storm Team said, with an extreme heat watch set to take effect mid-week and “feels like” temperatures as high ...