The southeast Wisconsin, Waukesha and Milwaukee forecast for the rest of the night will have a few flurries in it, but overall, it shouldn't contain much in the way of problems. Skies will be mostly cloudy, but with the colder air in place lows will bottom out in the low-teens.
Sunday night a warm front will be approaching. This could bring us a little patchy freezing drizzle overnight. Lows will bottom out in the mid-20's.
After that, things get much colder. A little dusting is also possible on Thursday and Friday.