Chicago had the worst air quality in the world for a few hours Thursday, thanks to smoke from Canadian wildfires.

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

Most of the Chicago area remains under an Air Quality Alert on Saturday due to smoke from Canadian wildfires. The alert was, at one point, set to expire late Friday night for most of the area, but it ...

Near Nebo, North Carolina, three people were rescued and at least 25 others were evacuated from a campground due to rising floodwaters.

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

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 ...

Smoke from Canadian wildfires have continued to drift over the Midwest, blanketing the region with haze and poor air quality, prompting the National Weather Service (NWS) and local departments to ...

National Weather Service officials issued an air quality alert set to expire at midnight Saturday for the Chicago and ...

Though hazy and smokey skies still linger, the Chicago area will see lighter levels of smoke overhead as air quality begins ...

Saturday offers generous sunshine mixed with puffy fair weather clouds, comfortable temperatures and low humidity. An Air ...