The City of Chicago advised residents to be prepared for lake-effect snow overnight, along with cold weather throughout the week to come.

Early morning commuters will want to be alert for icy road conditions as a wintry mix of snow and freezing rain moves in on Monday morning.

As Illinoisans return to the office after the holiday season, their Monday blues might be further magnified by lake-effect snow on the tail end of a major, disruptive snowstorm that slammed the central United States and by below-normal temperatures later in the week.

While some areas won't see much snowfall or any at all, a band of lake-effect snow is expected to develop starting Sunday night, possibly dumping several inches of snow in far northeastern Illinois.

Lake-effect snow is going to be the worry most of the day in Chicago and even into the early evening hours as well.

The city has opened several warming centers for public use amid lake-effect snow and freezing temperatures this week.

Untreated roads will be slippery as freezing drizzle sets the stage for more snow to come, a local meteorologist said.

A polar vortex is slated to sweep most of the continental US bringing winter storm warnings and a hazardous freeze to millions.

An Arctic blast will drop temperatures into the single digits by Sunday, with wind chills as low as -25 by Monday morning.

Lake-effect snow will continue Monday evening into Tuesday.

A powerful and deadly winter storm that stretched thousands of miles across the U.S. slamming major cities from the Midwest to the mid-Atlantic has finally come to an end, but officials are warning residents not to let their guard down as crews continue their work to clear roads and restore power after being pounded by heavy snow and ice.