An Arctic front will arrive in the region during the pre-dawn hours and while there won’t be a lot of precipitation associated with the frontal system, some of it will occur behind the front in the increasingly colder air. As a result, there can be a rain shower or two later tonight and then, after the surface cold front has passed through the region, snow showers could fall towards morning and right into the mid-morning hours. The winds will abruptly switch from the southwest to northwest at the time of the frontal passage and will pick up in intensity by tomorrow afternoon. Despite increasing amounts of sunshine Tuesday afternoon, temperatures will struggle to pass the low 40’s which is way below normal for this time of year (normal highs: 56 in Central Park, NY; 58 at PHL, and 60 at DCA). Tomorrow night promises to be perhaps the coldest night yet this season, but the cold snap will only last through Thursday as temperatures should rebound rather nicely at the end of the week.