Overnight freezing rain and icy conditions caused spinouts and crashes across the area Chicago area on Tuesday.
Chicago Public Schools has canceled Tuesday classes amid dangerously cold temperatures.
Much of the Chicago area is under wind chill warnings and advisories Sunday as temperatures plummet.
A winter storm has already dumped half a foot of snow in some areas, while others are seeing rain.
The Chicago area is bracing for a major winter storm set to begin moving in Friday morning.
Another winter storm system could hit the Chicago area and cause more issues on the roads on Friday.