Winter begins today. It's the winter solstice, which is the shortest day of the year here in the Northern Hemisphere. The exact moment of the solstice comes at 10:28 a.m. our time, marking the exact time that the Northern Hemisphere will be farthest from the sun. It's not going to feel like the first day of winter across Mississippi today. Warm temperatures are expected across the state with highs in the mid- to upper 70s today and tomorrow.