Update 11PM CST…
The band of wet snow mixed at times with rain continues to move off to the northeast. While remnant very light precipitation may persist over Cook and lake Counties in Illinois after midnight, accumulations will for all practical purposes be ended by that time. The Winter Weather Advisory will expire at midnight and snowfall totals will probably range from 1 to 3-inches across the area north of Interstate-80, with the heavier amounts in those counties adjacent to the Illinois/Wisconsin state line.
I addition to the reports below, Freeport west of Rockford reported 2.5-inches of snow, DeKalb reported an inch on the ground and Lincolnwood in Cook County reported a half-inch covering the ground.
The Winter Weather Advisory remains in effect until midnight tonight (purple-shaded area on map below). Wet snow continues north of Interstate-80 in northeast Illinois this evening with temperatures right at 32-degrees accumulations of 1 to 2-inches have caused slushy/slick spots on highway and local streets/sidewalks resulting in hazardous travel conditions. Scattered rain showers are occurring south of Interstate-80. There could be some remnant drizzle, but for all practical purposes the wet snow/rain will have moved east of Chicago by midnight.
Latest snow reports…
Marengo in McHenry County…1.8-inches
Winnebago in Winnebago County….1.5-inches
Roscoe in Winnebago County… 1.5-inches
Waukegan in Lake County, IL…1.1-inches
St. Charles, Kane Co…0.6-inch