Some scattered rain & drizzle with some fog will continue this afternoon after widespread dense fog overnight through this morning.
Once cold front passes this evening, winds will crank up from the northwest, skies will clear with time & lows will tank to 17-23 by tomorrow morning (with wind chills to single digits).
After sun & 20s tomorrow, we cloud over Friday.
Some snow, then sleet & freezing rain are likely late afternoon & through evening.
Precipitation should arrive in the area from southwest to northeast in the 5 p.m. to 9 p.m. time frame.
Icy road condition are possible in the 6 p.m. to 1 a.m. time frame before going to rain.
Rain may end as a bit of sleet then snow in the 11 a.m. to 2 p.m. time frame Saturday.
Howling northwest winds with gusts 40-50 mph are possible Saturday afternoon-evening as temperatures tank from 39-45 to the 20s very quickly.
A dusting of snowfall may occur in some areas on this backside of the system.
Ice accumulation is possible with up to 0.10" of glaze ice or freezing rain accretion & 0.10" of sleet.
Extensive, heavy freezing rain accretion is possible from central Illinois to Missouri with some tree damage possible.
Looks like 1" or less of snowfall here prior to that sleet & freezing rain with best chance of 1" in our northern & northwestern areas.
+12" is possible over Minnesota (with near blizzard conditions) with +6" totals also in Michigan & Wisconsin.
Much colder air will follow with highs in the teens Sunday with lows 0 to single digits.
Some snow showers are possible around Tuesday of next week, as well as Thursday with highs around 20 to the 20s, then rising to 30s by Thursday.
Around last 10 days of January mean temperature anomalies (note significant contraction of Southeast ridge of warmth with cold weather all the way down to the Gulf Coast & Florida owing to cold trough strength as Polar Vortex loosens some, allowing Arctic intusion southward)................(it also looks snowier than normal right now):
First week of February mean temperature anomalies:
Second week of February:
Overall February outlook (& snowier than normal):