The air quality in several U.S. states is taking a hit as smoke floats over the border from the Canadian wildfires. Here's ...

Forecasters say weak winds have left Canadian wildfire smoke to linger over the U.S. Stronger winds are expected to bring relief later in the week.

The air quality index on Tuesday across the Midwest and the Northeast ranged from "moderate" to "unhealthy" for sensitive adults. Some areas in northern Wisconsin, eastern Pennsylvania, northern ...

Air quality alerts spanned at least 13 U.S. states on Tuesday, with sensitive groups urged to limit outdoor activity to avoid ...

Smoke from Canadian wildfires is causing air quality concerns for millions of Americans in the Midwest and Northeast. Air ...

A statewide air quality advisory remains in place for Aug. 5. Officials say wildfire smoke may dissipate by mid-week. Check out the air quality map.

Canadian wildfire smoke is still lingering across Michigan, causing hazy skies. Another air quality advisory has been issued.

Mostly sunny to partly cloudy and warm. A smoky haze from Canadian wildfires. Warm too with highs in the mid 80s. Get the ...

Chicago’s summer skies are increasingly foul due to Canadian wildfires, especially when the weather otherwise is nicest. This ...

While an air quality alert continues for parts of the Midwest due to smoke from Canadian wildfires, northeastern Illinois was ...

Wildfires continue to burn across a massive area in Canada, particularly in the provinces of Saskatchewan and Manitoba.