Forecast December 21, 2024 8:13 am NBC 5 Forecast: Chilly first day of winter, storms possible Christmas Eve The first day of winter is bringing the chill this morning! Plenty of sunshine expected today with high temperatures in the 50s. NBC 5’s Adrienne Vonn has the forecast. Wake Up to Something Good 0:30 Weather Quiz: Arctic cold front 0:48 Weather Quz: Weak polar vortex 0:30 Weather Trivia: Wind power 0:37 Weather Quiz: Hottest temperature in December 1:03 Weather Quiz: Rollercoasters and weather