As much as 4 inches of rain doused the morning rush hour, flooding ramps and roads, and more storms are expected just in time for trick-or-treaters this evening.
Some areas could see another 2 inches of rain, and storms could be strong with large hail and damaging winds, according to the Chicago Weather Center.
The storms this morning brought more than 4 inches of rain in Woodridge, 3.8 inches in Plainfield and Westmont, 3.2 inches in Hyde Park in Chicago and 2.7 inches at Midway, according to the weather center. The north suburbs got hit with the least, less than an inch.
The heavy rain flooded parts of Interstate 55 and viaducts in the city, closing some ramps and streets this morning.
Two ramps on Interstate 94 were closed: Northbound from 94 to eastbound 147th Street, and southbound 94 to westbound 130th Street. There was also standing water reported on Interstate 55 northbound at Kedzie Avenue, and Interstate 94 northbound at 130th Street.
Cook, Will, DuPage, Kendall and Kane counties were under a flood advisory until 9:30 a.m., according to the National Weather Service.
"You have periodic chances for heavy bouts of rain throughout the day, but in the near term, the heaviest right now should exit with still some light rain expected," Stephen Rodriguez, a weather service meteorologist said around 5:15 a.m. "Most of the day is kind of expected to be what we’re seeing now. Cloud cover, rain, periodic thunderstorms possible."