forecast December 21, 2020 5:00 am Forecast: First Day of Winter Begins Today: Cloudy, Cape showers depart. Highs mostly shy of 40. Overnight Monday Night: Isolated CT freezing rain showers, otherwise cloudy. Lows in the 20s. Tuesday: AM clouds to PM sun. Highs around 40. US & World Videos 4:16 Chilly Saturday after snowstorm in New England 3:33 Weather forecast: Snow moves out as cold settles in 4:24 Forecast: How much snow are will Boston get tonight? 4:13 First Alert Forecast: Winter weather advisory in effect 3:09 Forecast: What can we expect for snow Friday?