Michigan's air, which has been tainted for several days by wafting smoke from Canadian wildfires, is expected to improve over the weekend, state officials said. But don't breathe too deep a sigh of relief, experts warned: Conditions could decline again early next week.

An Air Quality Advisory was extended for much of metro Detroit through Saturday afternoon.

We'll see the smoke clear today as the temperatures start to head in the right direction. Lingering wildfire smoke keeps an Air Quality Alert in place through noon. Most folks won’t notice, but sensitive groups should limit strenuous outdoor activity.

Canadian wildfires led to Mackinac Bridge in Michigan being shrouded in smoke, prompting visibility and air quality concerns, with Michigan authorities and health officials advising caution and monitoring air conditions.