In Chicago, videos captured the skyline disappearing behind a cloud of dust that moved across the city around 6:45 p.m. Stream NBC 5 for free, 24/7, wherever you are. WATCH HERE.

Chicago's air quality ranked among worst in the world due to Canadian wildfire smoke Another large fire exacerbated by climate change is threatening the health of Chicagoans.

National Weather Service officials are expecting patchy smoke from Canadian wildfires to move into the Chicago area Friday and a chance of showers and thunderstorms storms.

Photos of the downtown Chicago skyline show a massive dust cloud leaving many buildings only barely visible. The dust storm warning for impacted expressways is valid through 8:30 p.m., ...