When is it going to snow? The Chicago weather forecast shows a significant temperature drop with possible flurries over the weekend.

Chicago officially had the worst air quality in the world for a few hours Thursday. As a haze of Canadian wildfire smoke blanketed the metro area, no other major city in the world had air ...

The hazy skies in the Chicago area are the visible sign of the poor air quality on Thursday as smoke from Canadian wildfires sent Chicago to the top of the list of most polluted cities in the world.

Chicago experiences the worst air quality in the world for a few hours due to Canadian wildfires. Smoke can trigger asthma attacks and other health problems. Air quality alert in effect.

Most of the Chicago area remains under an Air Quality Alert this weekend due to smoke from Canadian wildfires.