The state of Minnesota is entering another in a long string of summer days marred by air quality alerts. Poor air quality will continue through Saturday with lingering wildfire smoke from Canada.

Air quality warnings covering the whole state are expected to remain in place through Saturday due to Canadian wildfire smoke.

Minnesota’s air quality alert, which had been slated to expire Saturday evening, has been extended to noon on Monday. Winds are still expected to shift and start driving unhealthy air north and out of the state on Saturday.