If it's going to be cold, it might as well snow. Light snow west of Northern Illinois Thursday evening will mostly miss the Stateline, but a few flurries are possible overnight into Friday morning.
Wind chills as low as -25 degrees will greet you Saturday morning with snow to likely round out the weekend. And that snow will come with an area of low pressure that will move across the Midwest Saturday night and into Northern Illinois and Southern Wisconsin by Sunday morning.
Moisture will be somewhat limited due to the dry air in place from a departing Arctic high pressure system Saturday. But as the low moves closer Sunday, light snow is expected to begin as early as late morning and continue into the afternoon. It may be just enough to have to get the shovels out as a couple inches could fall by Sunday night.
The low should be out of here by next Monday morning, but another clipper looks to move in Tuesday night and could bring a little more snowfall by Wednesday morning.