Canadian wildfire smoke continues to degrade air quality across the Chicago area through Monday.

Wildfire smoke from Canada and Minnesota is expected to maintain unhealthy air quality across the Chicago area through Monday night. While the region experienced a brief reprieve on Saturday, a second round of smoke returned in the late afternoon, pushing air quality into the "unhealthy for sensitive groups" range. The National Weather Service has extended an air quality alert through Monday for much of northern Illinois and northwest Indiana. Health experts advise residents, particularly those with respiratory issues like asthma, to limit strenuous outdoor activities and stay hydrated. Experts also noted that the smoke contains harmful pollutants similar to tobacco, which can have lasting effects on the eyes and chronic conditions. The administration noted the impact of the smoke on social media, with President Trump blaming Canada's forest management and threatening additional tariffs on the country. Meanwhile, meteorologists forecast a shift in weather patterns by Monday, with a storm system expected to bring damaging winds and potential hail to the Midwest.

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