National Weather Service United States Department of Commerce

A Slight Risk for severe weather exists over southern Wisconsin late this afternoon into this evening, primarily for large hail. A Winter Weather Advisory is then in effect from 1am to 1pm Wednesday over central to east-central Wisconsin for travel impacts from freezing drizzle.
Storms will form over the next few hours. The best potential for large hail will be along and south of a Lone Rock to Milwaukee Line. Storms will then continue tonight, with a downward trend in the large hail threat later in the night as storms coalesce and weaken.
After the storms, cold air will intrude from the northwest. Freezing drizzle will take hold north of I-94, with a light glaze of ice expected in the advisory area by daybreak Wednesday. A changeover to light, wet snow will then sweep in from the northwest after dawn.