National Weather Service United States Department of Commerce

A wave of snow will progress northeastward Saturday evening, stalling and becoming a mix of rain, snow, and freezing rain Saturday night across central WI. There is potential for over 2 inches of snow in central WI, and up to a glaze of ice along and north of I-94. A Winter Weather Advisory is in effect for Sauk to Ozaukee Counties northward.
Temperatures are expected to rise rapidly with southwesterly winds on Sunday, bringing chances for embedded thunderstorms and potentially small hail near the WI/IL border during the day. Cold air will transition rain back to snow Sunday afternoon/evening.
A return to snow is expected Sunday afternoon/evening, then continuing through Monday. Temperatures will drop rapidly overnight as winds increase to gust around 45 mph, leading to blowing snow and reduced visibility potential.