The air quality in the Midwest, particularly in parts of Wisconsin, Minnesota, and Illinois, has worsened due to smoke from Canadian wildfires. The smoke has resulted in orange to red air quality levels, indicating unhealthy conditions for sensitive groups and everyone.

The duration of the smoky conditions depends on the low-level winds and the progression of the wildfires in Ontario and Quebec provinces in Canada. An air quality alert has been issued for several areas in Minnesota and Wisconsin until various times on Thursday.

In addition to the diminished air quality, the Midwest is also facing the possibility of severe weather. Thunderstorms have already developed in parts of northern Minnesota and central regions, and they are expected to move eastward into Tuesday night. More showers and thunderstorms are forecasted for Wednesday, with a slight risk of severe weather including large hail and damaging winds in the Mississippi River area from the Twin Cities to Winona and La Crosse.

Fortunately, the air quality is expected to gradually improve, especially by Friday morning. As for the severe weather, the threat will persist into Wednesday evening, and there may be additional chances for showers and storms until Sunday morning.

Overall, residents in the affected areas should continue to monitor air quality alerts and stay informed about weather conditions to ensure their safety.