The festival kicked off Thursday, when Chicago had the worst air quality in the world for a few hours. But haze didn't choke ...

Smoke and grit from hundreds of forest fires have spread across large parts of Canada and the northern US, sending air quality across the Midwest and northeast US and Toronto to unhealthy levels.

The heat returns Wednesday with highs in the upper 80s to near 90 degrees. Skies are expected to be mostly sunny to partly ...

An air quality advisory was sent out to New Yorkers for Monday, when smoke from wildfires in Canada is expected to reach the ...

Health officials from Minnesota to Maine have issued alerts warning of poor air quality from wildfires burning in Canada.

The Great Plains could also see possible flooding from severe storms on Sunday. A flash flooding risk of a level 2 out of 4 ...

Hazy skies from wildfire smoke from Canada, which may become more concentrated with visibility potentially dropping to 3-5 ...

The Chicago area has experienced several days of pleasant temperatures, but the mercury will be trending upward again in ...

Smoke from the more than 700 wildfires burning in Canada is continuing to blanket parts of the Midwest for a final day.

Minneapolis faced hazardous air quality, ranking second-worst globally due to Canadian wildfire smoke. Air quality alerts ...

When the smoke cleared on the Trade Deadline on Thursday, the Cubs had accomplished a few of their stated goals ahead of a ...

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