Summer heat will return to the Twin Cities on Monday as air quality concerns linger for parts of Minnesota. The week will start dry and warm, with highs near 90 in the metro. The northern half of the state remains under an air quality alert through 6 p.m. due to Canadian wildfire smoke, the National Weather Service said.

Northern Minnesota and northern Wisconsin remain under an Air Quality Alert Monday due to wildfire smoke. Conditions are unhealthy for the public.

The Minnesota Pollution Control Agency (MPCA) has extended its air quality alert through Tuesday, July 15, for northern Minnesota. Areas around the Northshore will still be in the level considered unhealthy for everyone.