Smoke from wildfires in Canada has spread more than 5,000 miles, reaching parts of Russia and Europe during the past week.

An Air Pollution Action Day was called Wednesday morning for the Chicago area and is in effect until midnight, weather ...

Canada is having another bad wildfire season, and more than 27,000 people in three provinces have been forced to evacuate.

To check your state's air quality, visit AirNow's website, and plug in your zip code, city or state. Here's what to know as ...

Wisconsin has seen more air quality advisories for wildfire smoke in 2025 thus far than in all of 2024. Here's how you can ...

Smoke from Canadian wildfires began to worsen air quality in the eastern U.S. on Wednesday as several Midwestern states ...

Canadian wildfire smoke has entered the Upper Midwest and poses significant health impacts in the hardest-hit areas.

Canadian wildfires are raising air quality concerns in several states, including the Dakotas, Minnesota and Wisconsin.

Smoke from more than 100 wildfires blazing in Canada is expected to spread to impact air quality in more U.S. state.

An air quality advisory for much of Wisconsin remains in effect until noon on June 5. Here's how you can keep kids and pets safe from bad air quality.

Smoke from the Canadian wildfires continues to bring potentially dangerous air quality to parts of the northern U.S., with hazy skies possible.