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

A stretch of hot, dry weather is expected to build through the end of the week. CHICAGO - Not only has wildfire smoke been a respiratory irritant for the past several days, it has also held ...

Wildfire smoke from Canada turned Chicago into one of the world’s most polluted metro areas as the Lollapalooza music ...

"The air quality is officially dangerous in Chicago," says Brian Urbaszewski, director of environmental health programs at ...

The "unhealthy" air, which ranks as level four of six on the Air Quality Index, comes after multiple consecutive days of air quality alerts.

When wildfires burn, the smoke can travel long distances and degrade air quality far away, which presents risks for those ...

Smoke from Canadian wildfires continues to choke the skies over the Upper Midwest this weekend, with the milky haze even ...

Smoke has continued to cloud Illinois' air for a second straight day, but the poor air quality isn't because of a fire in the ...