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.

As Chicago Public Schools students wrap up a two-week holiday break, snow could welcome them back into the classroom on Monday. Meanwhile, South Shore high-rise residents dealt with a power outage amid sub-freezing temperatures Sunday.

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.

A winter weather advisory has been issued for Lake County in far northeastern Illinois, with lake-effect snow potentially impacting the Monday morning commute.

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

Some areas of the U.S. may see temperatures as low as -20 or -30 degrees early next week as arctic air from Siberia rolls in.

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

Today will be the warmest day of the year so far in Chicago, but a sharp temperature drop with subzero wind chills will begin this weekend, marking the start of a prolonged cold spell.