December is off to an unseasonably warm start. The temperature has jumped up to an impressive 63 degrees, fifteen degrees warmer than normal! That warmth isn't going to last much longer as a cold front will pass through the city by mid-afternoon. Look for the temperature to quickly drop through the 50s late this afternoon down to the mid 40s by late this evening. Because the jet stream is accelerating as it passes overhead there is a chance of light rain in the early evening.
The temperature is expected to bottom out near the freezing mark tomorrow morning and not move much during the day on Tuesday. Look for a high near 40 degrees. Some light snow, or snow mixed with rain, is possible tomorrow as a storm forms along the old cold front and moves up the coast. Warmer weather will arrive in the city tomorrow evening as the storm takes a more westerly path up the coast.
Any precipitation will turn to rain in the city but interior areas like northwestern New Jersey, eastern Pennsylvania and the mid-Hudson Valley and much of upstate New York could see freezing rain and hazardous travel conditions.
Just to keep things crazy, unseasonably mild weather will return on Wednesday when the high is expected to reach the mid 50s. Cooler weather should prevail toward the end of the week before we do the whole coastal storm dance again on the weekend.