Smoke from Canadian wildfires hovered over several Midwestern states Saturday, bringing warnings of unhealthy air.

Smoke from Canadian wildfires has sent a blanket of smoke over the midwestern United States this weekend. The National ...

Air quality alerts have been issued across most of the Midwest, and hundreds of wildfires are burning across Canada.

Wildfire smoke from Canada is blanketing the skies in the Midwest, leaving millions with dangerous breathing conditions.

Canadian wildfire smoke continues to foul Michigan's summer air. Photos of the Mackinac Bridge at 1:07 p.m. Sunday, July 13, ...

Canadian wildfire smoke lingers over Michigan. As of July 30, the Upper Peninsula is under an advisory for unhealthy air.

Dry and quiet weather remains in the forecast for the weekend and into the upcoming work week as a few areas of high pressure ...

Canadian wildfire hangs over Michigan, creating hazy skies in the Lower Peninsula. A statewide advisory has extended into the weekend.

Chicago was listed as the worst air quality in the world for part of Aug. 1 because of smoke from the fires blowing southeast ...

Air quality will deteriorate across 12 states through Saturday, mainly in the Upper Midwest, as wildfire smoke pours into the ...