Wow! I still can't believe Thanksgiving is just 4 short days away and soon we'll be ringing in the new year. Where has this year gone?!?
Rain for Northern Illinois and Southern Wisconsin has been in short supply lately. But that will change in 36 hours. Rain showers will overspread the area from west to east by supper time Tuesday. Our atmosphere will be pretty dry to start the day Tuesday, so I don't anticipate much precipitation to fall before late afternoon. If it does, it's possible there could be a little sleet before the transition over to rain by Tuesday night.
Most of the accumulating rainfall will arrive overnight Tuesday with dreary skies, drizzle and fog leftover for Wednesday. Low clouds will likely cause delays at the surrounding airports Wednesday, so you'll want to check ahead with any airlines.
Rainfall totals will add up with most in Northern Illinois and Southern Wisconsin receiving anywhere between a quarter of an inch up to three quarters inch of rain by Wednesday night. Accumulating snow is likely north of Madison with a wintry mix north of Janesville. Plan ahead if you will be traveling Tuesday or Wednesday.