Chicago, Illinois – A line of showers and thunderstorms moving across northern Illinois may bring lightning, small hail, and brief downpours through midday Sunday.
According to the National Weather Service Chicago office, a broken line of storms is tracking northward across northern Illinois, with the highest chances for thunder expected in a narrow corridor north of Interstate 55 late Sunday morning. Surrounding areas may still see scattered showers as the system moves through the region.
Meteorologists say the storms are moving northeast at roughly 60 mph, meaning conditions could change quickly as the line advances toward communities including Aurora, Joliet, DeKalb, Elgin, and areas west and northwest of Chicago.
The National Weather Service says the primary hazards in the most active storm corridor include lightning strikes and small hail, potentially reaching about nickel size. In surrounding areas, storms may produce brief heavy rain and gusty winds capable of knocking down small branches or moving unsecured outdoor objects.
Officials also warn that downpours could temporarily slow travel, especially on major roadways such as I-88, I-90, I-55, and I-80 as storms move through the region.
Residents are advised to move indoors if thunder is heard and to use caution while driving in heavy rain, as visibility and road conditions may change quickly.
While the storm activity is expected to remain scattered, forecasters say conditions will continue to be monitored through the late morning hours as the line progresses northeast.
For commuters and students traveling Sunday morning, brief weather disruptions could occur as storms pass through northern Illinois.
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