The ice could cause power outages, tree damage and make travel unsafe and almost impossible, including during the Monday afternoon and Tuesday morning commutes.
More winter mixed precipitation ahead later this week.
The ice will result in hard travel conditions, including during the morning commute on Monday.
The next round of winter winter weather enters northeast Wisconsin this afternoon and continues into Tuesday.
The worst of the storm is expected from now until about 3 p.m.
He said this is a challenging storm to deal with, since it involved spurts of rain and then freezing rain, which can impede the treatments. Our system should exit the region by Tuesday afternoon. Temperatures will drop to freezing by 9 PM and rain will lift in from Missouri and over the cold shallow layer of air over southern and central Iowa.
Heavy rain to the south caused flooded streets in Janesville, with the area of Ruger Avenue and Wright Road experiencing so much flooding that police advised residents not to use those streets.
Saturday should be partly to mostly cloudy with highs in the low to mid 30s.
The temperature at 7 a.m. was 31 degrees in Wyandotte County.
Officially, 0.03 inches of precipitation was recorded at the Dane County Regional Airport on Saturday, boosting Madison's February total to 0.9 inches, 0.09 inches above normal.