National Weather Service United States Department of Commerce

High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

A Cold Weather Advisory is in effect for all of southern Wisconsin from midnight to noon Monday. Tonight's low temperatures of zero to -10 will combine with a 10 mph breeze to produce wind chill values of -20 to -25. The coldest period will be near sunrise Monday morning.