A smaller snowpack in Canada has left forests primed to burn, starting wildfire season earlier than normal in recent years.

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

A thin veil of hazy smoke from Canadian wildfires blanketed the Kansas City sky early Friday, making the air unhealthy from ...

Be prepared for hazy conditions and an air quality alert as Canadian wildfire smoke continues to affect the state through ...

The smoke is expected to remain over the northern and central Plains of the United States for the next couple of days, ...

The hazy skies in the Chicago area are the visible sign of the poor air quality Thursday as smoke from Canadian wildfires ...

Every air quality monitor in Minnesota is reporting red or unhealthy conditions for everyone, an official said.

Smoke from widespread wildfires in Canada prompted air quality alerts across several Midwest and Northeast U.S. states this ...

An air quality alert covering the entire state of Minnesota continues on Thursday, marring otherwise fairly ideal weather ...

The elevated levels of fine particulate matter resulting from wildfire smoke could present significant health risks.