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

Another wintry weekend is in the books! Most areas north of I-80 picked up 2–5 inches of snow, with a corridor of 5–7 inches across northern Illinois. Locations south of I-80 generally saw 1–3 inches of snow from this weekend's storm system.

Chicago's weather forecast includes mild temperatures with potential rain and fog, followed by colder conditions and possible snow showers as Thanksgiving approaches.

A shifting polar vortex will allow multiple rounds of Arctic air to invade the central and eastern United States through the first half of December. The cold waves will be accompanied by opportunities for accumulating snow.

Cloudy and cold today with brief flurries, a midweek warm-up into the 30s and 40s, then a bitter cold snap with occasional snow late in the week.

Chicago experiences snow-caused flight delays at O'Hare and travel disruptions, with up to 6 inches of snowfall and icy roads.

As much as five inches of snow fell on the city by Sunday. Chicago has nearly eclipsed last winter's snow total in the snowiest start to the season in over 40 years.

Plows are out in Chicago as snow blankets the city, with the first round of fast-moving clippers bringing up to 6 inches of snow, slick roads and delays and cancellations at O'Hare International Airport.