A Winter Weather Advisory went into effect at 9 p.m. Saturday night for Boone, DeKalb, Grundy, Kane, Kendall, LaSalle, and McHenry counties in Illinois, according to the National Weather Service. A Winter Storm Watch is also in effect in Lake and Porter counties in Indiana.
It's cold and dry right now but that's not expected to be the case later.
How much snow you see may depend on where you are.
FULL 7-DAY FORECAST
Some areas can expect to see 2-4 inches of snow Saturday night, ABC7 Meteorologist Larry Mowry said. Some totals could even reach around five inches and Lake and Porter counties in Indiana can expect nearly six inches with lake effect Sunday morning.
The snow is expected to end in the city around 10 a.m. Sunday, but the worst of it will be overnight, Mowry said.
Temperatures are expected to drop from 29 degrees to about 15 degrees Saturday night, with winds gusting around 15 mph, the weather service said.
More snow is also expected Sunday night into Monday morning, dropping possibly another 1-4 inches. Slick and slippery roads, and reduced visibility are also expected, the weather service said.
The Chicago Department of Streets and Sanitation has deployed a fleet of salt spreaders in response to the winter storm system.
The 211 salt spreaders will focus on addressing snow along Chicago's arterial routes and Jean-Baptiste Point DuSable Lake Shore Drive to ensure they are safe and passable for motorists, the department said.
The salt trucks will be active across the city overnight and transition into the neighborhoods later, if needed.
"DSS staff will continue to monitor the weather and ground conditions and will adjust snow resources when necessary," the department said.
To view the city's snow fleet in real time, visit www.chicagoshovels.org.
The Sun-Times Media report contributed to this post.