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.

After spending days with some of the worst air of any major city in the world, Detroit is getting relief just in time for this weekend’s outdoor activities.

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.

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

Smoke from Canadian wildfires is prompting air quality alerts in Michigan. It’s expected to clear up some Friday – but could be back soon.