The National Weather Service issued a winter weather advisory early Friday morning for much of the day Saturday in Will County.
Two to 5 inches of snow is predicted to fall from 6 a.m. to 9 p.m. Saturday, and it could cause hazardous travel conditions, according to the weather service.
The advisory applies to much of northern Illinois but especially areas along and south of Interstate 80. Motorists should plan on slippery road conditions and limited visibility.
"Use caution while driving," the advisory said.