Milwaukee, Wisconsin – A colder pattern settling over the Upper Midwest just ahead of St. Patrick’s Day could turn incoming storm systems into accumulating snow across parts of Wisconsin between March 11 and March 17.
According to the National Weather Service Climate Prediction Center, Wisconsin falls within a 40-50% probability zone for above-normal precipitation during the 8-14 day period. At the same time, the state trends below normal on temperatures, particularly across northern and central counties. That combination raises the likelihood that late-season systems produce measurable snowfall instead of chilly rain.
In Green Bay, Wausau and Eau Claire, overnight lows in the 20s and low 30s could support accumulating snow, especially if heavier precipitation bands develop. Milwaukee and Madison may see a mix at times, with rain changing to wet snow during overnight hours or early morning commutes if temperatures dip just a few degrees lower. Along the Lake Michigan shoreline, wind direction will play a key role in determining surface temperatures and precipitation type.
The broader eastern United States is favored to see wetter-than-normal conditions, while California and much of the Southwest trend drier, sharpening the national contrast in weather patterns.
Drivers across Wisconsin should monitor road conditions closely, particularly on bridges and untreated secondary roads during early morning hours. Even minor accumulation can create slick travel. Additional updates are expected as the March 11-17 period approaches and confidence in storm timing increases.
