A cold front is set to bring the coldest air in months to millions across the North-Central U.S. and Northeast, with temperatures dropping significantly and a chance of snow anticipated in higher elevations. As the region experiences a late autumn chill, the first frost and freeze of the season are possible, particularly in the mountains. Preparations are underway as weather forecasts indicate gusty winds and conditions that may include showers and brief bursts of winter-like weather. Meteorologists warn residents to brace for chilly fall days ahead, with temperatures expected to fluctuate as warmer conditions precede the incoming cold front. This significant shift marks the arrival of typical autumn weather patterns, highlighting the transition into winter.