The National Weather Service is predicting that 4 to 7 inches of snow could fall over McHenry County.
A winter weather advisory for McHenry and surrounding counties has been extended to midnight Wednesday, according to the National Weather Service. The beginning of the advisory also was moved up from 9 p.m. to 6 p.m. Monday.
Residents of McHenry, Winnebago, Boone, Lake and Ogle counties should expect snow accumulation of 4 to 7 inches and ice accumulation of up to one-tenth of an inch, according to the weather service.
Winds will gust up to 35 mph, according to the weather service, which could result in blowing snow and increase the likelihood of power outages.
Weather conditions likely will affect the Tuesday morning and evening commutes, according to the service.