Merry Christmas Eve, everyone! So, it looks like things are working out the way they should.
Snow is widespread from North Illinois back into Iowa. Chicago and Milwaukee should be receiving snow soon, while Rockford, IL is likely having quite heavy snow.
For later tonight, the snow should continue and exit. Lake effect snow will take control in Chicago for a short period, while lingering flurries are expected across North Illinois as the system moves out.
Below, we have an infrared image of the precip moving through the Midwest.
Radar below displays the heaviest snows.