Severe Thunderstorm Warning Issued for Cook, DuPage, and Will Counties in Illinois

Alert Details

The National Weather Service in Chicago IL has issued a Severe Thunderstorm Warning for portions of northeastern Illinois. This alert is based on radar-indicated severe thunderstorms moving through the region.

Affected Areas

The warning covers the following geographic regions in northeastern Illinois:

• DuPage County
• Northwestern Will County
• South central Cook County

Impacted locations include Aurora, Joliet, Naperville, Bolingbrook, Orland Park, Wheaton, Downers Grove, Elmhurst, Lombard, Carol Stream, Romeoville, Plainfield, Addison, Glendale Heights, Woodridge, Glen Ellyn, West Chicago, Lockport, New Lenox, Homer Glen, Mokena, Franklin Park, Frankfort, Hinsdale, and Lemont.

What You Should Do

For your protection, move to an interior room on the lowest floor of a building immediately. Residents should seek shelter to avoid potential injury from flying debris or falling trees.

Expected Conditions

At 8:32 PM CDT, severe thunderstorms were located along a line extending from Warrenville to Shorewood, moving northeast at 50 mph. Hazards include:

• Wind: Gusts up to 60 mph, which may cause damage to roofs, siding, and trees.
• Hail: Quarter size hail (1.00 inch), which is expected to cause damage to vehicles.

Timeline

The warning is effective immediately as of 8:32 PM CDT and is currently scheduled to expire at 9:00 PM CDT on March 10, 2026.