Air quality wildfires Midwest Montana North Dakota Minnesota.

Wildfire smoke from Canada has made for bad air quality over parts of the Upper Midwest. Most of Minnesota had “unhealthy” air quality Saturday. That is according to a U.S. Environmental Protection Agency map, and parts of Montana, North Dakota and Wisconsin were also dealing with the same. The smoke strikes at a time when people want to be outdoors enjoying summer pastimes. A Minnesota resort owner said he had few guests and no boats at his docks. And in Arizona and Colorado, wildfires continue to burn in and near Grand Canyon and Black Canyon of the Gunnison national parks.