A Winter Weather Advisory was in effect until 7 a.m. for Cook, DeKalb, DuPage, Grundy, Kane, Kankakee, Kendall, Lake, La Salle, Livingston and Will counties.
The snow is creating hazardous travel conditions for the morning commute as well as strong wind gusts.
ABC7 Accuweather Meteorologist Tracy Butler says the snow is a heavy, slushy snow. The snow will diminish after 8 a.m. and clear out by noon, with sun in the afternoon, Butler says.
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The snow was making it hard to see the lane markings on I-55 in the ABC7 Storm Tracker
Several crashes in the area have been reported, including a car that crashed into a wall on northbound I-55 near La Grange.