Many residents were surprised at just how large the hail was.
There were also downed power lines and minor flooding from the storm.
No injuries were reported.
About 9,300 customers in northern Illinois are still without power following the storms. That's down from a high of 69,000.
Many of those outages were caused when trees fell on power lines.
Damaged trees were a common sight in northern and western suburbs.
In Wauconda, a semi was blown off the road as winds hit 65 miles per hour. The driver was not hurt.
In a yard in Round Lake Park, the wind caused a shed to collapse. It was pushed across the property and it ended up against a fence.
In Springfield, a tornado warning interrupted Illinois lawmakers working on the budget Friday night.
Tornado sirens blared in the state capitol, sending everybody to the basement of the capitol. Lawmakers huddled and waited while security guards announced a tornado had touched down a few miles away and another was coming.
Outside, the sky turned ominous and the wind kicked up but no tornadoes ever developed in the immediate area of the capitol.
But for many residents in town, it was still a frightening experience.
"Scary enough to be one but we just didn't actually see it. No damage so, but I came up and looked cause just the curiosity, and my wife told me to stay downstairs, but I had to come up and look," said Dana Dinora, Springfield resident.
South of Springfield, severe storms rumbled through several small towns, causing tornado and flash flood warnings.