A Severe Thunderstorm Watch was issued for most counties in the Chicago area, but expired by midnight.
The afternoon saw things warm up with some dry hours before more storms in the evening, ABC7 AccuWeather meteorologists said.
Waves of storms in the evening could become severe, with the main threat being wind, along with hail and flooding.
The Storm Prediction Center had the entire Chicago area under a Level 2 risk for severe weather Wednesday.
Some thunderstorms were expected to develop between 4 and 8 p.m. south of Interstate 80.
After 8 p.m., more storms were expected to sweep across the area until about midnight. There is a low tornado threat, as well.
The Metropolitan Water Reclamation District has continued an Overflow Action Alert for Wednesday.
There is a flood warning in effect until 11:30 p.m. for Kenosha County in Wisconsin. There is a Flood Warning from 1 a.m. Thursday to 7 a.m. Saturday for Kane and Kendall counties and a warning until 4:45 a.m. Thursday for Lake, McHenry and Cook counties in Illinois.
There is flood watch for most of the Chicago area until 1 a.m. Thursday.
Rounds of rain spark flooding concerns along Des Plaines River
Firefighters in the Des Plaines spent the day Wednesday fortifying a fire station as the area can be prone to flooding due to its proximity to the Des Plaines River. County officials issued a warning to homeowners with more rain on the way, with concerns for flooding.
The firefighters filled sandbags to surround their station off River Road, as city and county officials paid close attention the Des Plaines River water levels.
"We're anticipating river levels on the Des Plaines River to rise and crest around Friday morning about 7 a.m. to a flood stage, so we want to be proactive," Des Plaines Fire Department Chief Matt Matzl said.
Recent rain saturated the ground causing localized flooding in the area, leaving some roads impassable.
The city of Des Plaines is working to alleviate the damage done by Tuesday night's storm as they prepare for precipitation. Water pumps seen stationed on River Road next to the rising waters of the Des Plaines River. Covered barriers were strategically placed in flood prone areas.
The city provided sandbags for residents to help protect their homes with this reminder for neighbors.
"You want to stay out of the flood waters,"Chief Matzl said." We don't want to walk in it. We don't want to drive in it. It's contaminated water first of all so it's unhealthy and if we're driving we want to stay out of it. Even 12 inches of water, a car could get washed away so we want to stay out of that."
The Des Plaines River is expected to crest Friday. Officials say after the storms, the warm weather to follow will allow for the water levels to recede.
Downpours and isolated storms continued Wednesday morning, after strong storms blew through the area Tuesday.
People in Elgin were cleaning up from the storms as a large tree crushed cars on a quiet suburban street.
The family who lives there said they just moved in less than a year ago.
Storm causes large tree to crush cars on Elgin street
They said they heard a loud boom Tuesday night when the storms came through. They came outside to see a massive tree in their front yard uprooted.
It fell right on top of two of their vehicles parked out on the street and took power lines down with it.
"This was a big surprise to come around the corner and boom here's a very, very large old pine laying in the middle of the street that took off a part of the tree across the street," neighbor Gary Kunold said.
Safety crews have Chicago Street blocked off between Worth and Commonwealth avenues.
"This is unbelievable," neighbor Angel Rodriguez said. "In Elgin, you don't see the wind doing this much damage; so it's unbelievable."
"The wind really picked up," neighbor Norm Ball said. "It was like microbursts of wind, and then we started looking out the window. And we could see there was a tree down."
Ball cleared tree limbs from the sidewalk, grateful the tree narrowly missed his home.
"I feel sorry for these guys," Ball said.
Record rainfall was recorded at O'Hare Tuesday, making it the rainiest day in April - since 2013.
"We get these periods where we get a lot of rain, and we're in a cycle where we're getting again and again, again for a while here," Kunold said.
Kunold, who's lived there for 40 years says, said it's an older neighborhood. So sometimes they're affected more heavily by storms.
"Lots of these homes are somewhere between 75 and 100 years old," Kunold said. "And trees have been here for decades and decades and decades. You've got big old trees. And whenever we get big storms, this whole area it's not uncommon that we get a lot of limbs down and sometimes whole trees."
"At least nobody got hurt, that's the important thing," Rodriguez said.
ComEd crews were seen working in the area and neighbors said power has been restored.
Tornadoes and baseball-sized hail tore through parts of Wisconsin and Iowa on Tuesday evening, leaving behind damaged buildings and at least one home destroyed.