A Flash Flood Warning continues until 8:45AM for the following areas: Southern DeKalb County, Northern Grundy County, all of Kendall County and Northern LaSalle County.
As of 3:45AM, a radar rainfall estimate product indicates that as much as 3" of rain had fallen over portions of northern LaSalle County.
Here are some of the latest rainfall totals from across the rest of the Chicago area as of 3:50AM:
0.65" Romeoville, IL
0.59" Morris, IL