In the U.S., smoke from Canadian wildfires was detected drifting through Montana, North Dakota and northern Minnesota.

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

Smoke from Canadian wildfires worsened air quality in the eastern U.S. on Wednesday as several Midwestern states battled ...

Smoke from Canadian wildfires is engulfing much of the eastern and central United States and and is expected to continue for ...

Although the majority of wildfires are occurring in western Canada, smoke from these fires has been drifting eastward, ...

The ongoing Canadian wildfires have reportedly blanketed a third of the United States, affecting millions, with the National ...

In addition to the eastern US, the smoke from the fires has caused air quality to drop to unhealthy levels in parts of the ...

While both dust and smoke are similar, it's also important to point out their differences. Here's how to tell what's causing the haze in your skies.

Wildfires in Canada have triggered widespread evacuations and hazardous air quality alerts across the northern United States.

AIR QUALITY ALERT REMAINS IN EFFECT UNTIL NOON CDT WEDNESDAY... * WHAT...The Minnesota Pollution Control Agency has issued an ...

Canadian Wildfires continued to burn, and smoke from the Canada fires could be affecting U.S. air quality in several states. Is Indiana impacted? What we know ...

Here is what to know as of Monday, June 2. Parts of Montana, North Dakota, South Dakota, Minnesota, Iowa and Illinois had swaths of air quality warnings ranging from "moderate" and "unhealthy for ...