Thousands of Chicagoans have filed service requests to the city for snow and ice removal on sidewalks, roads and bike lanes after this winter kicked off with the most snow in the area since 1978.

Overnight Chicago-area snowfall created hazardous road conditions and caused delays at Chicago O'Hare International Airport on Sunday.

Two snow systems are expected to pass mostly south of Chicago, bringing limited accumulation before dangerously cold air settles in this weekend.

Wind chills could dip to minus 25 degrees from Saturday night into Sunday morning, according to the National Weather Service.

If it felt like winter started unusually early in Chicago, it did. That’s because the city is off to its snowiest start to winter in decades, according to the National Weather Service. So far, 17.1 inches of snow has been recorded in Chicago as of Dec.

Chicago has now seen more than 17 inches of snow this winter season — the quickest accumulation since 1978, according to the National Weather Service.

A Winter Weather Advisory has been issued for much of the Chicago area, as roads may become slick and snow-covered.

After snowy weekend, Chicago expected to receive up to another four inches of snow on Monday during evening rush hour.

Parts of Illinois will continue to be hit by snow and wind this week, with some expected to get up to four inches of accumulation. Here's the forecast.