Daily highs have been above 60 degrees on 10 of the first 17 days this November, but that warm streak will come to an abrupt end tomorrow night. Before that happens high pressure stretching up and down the East Coast will give us an unseasonably warm mid-November day today. This afternoon's high will reach the mid 60s, which is more than ten degrees warmer than average. Saturday will be a little bit cooler, with a high in the lower 60s, but that will be the end of the warm weather.
A strong low pressure system that is over the Upper Midwest this morning will pass well north of the city tomorrow night. The cold front associated with that storm will whoosh through the area in the evening, bringing rain to the city and rain changing over to snow at higher elevations north and west of the city. More significantly, get ready for a cold and windy Sunday. The high will only reach the mid 40s. Gusty westerly winds at 20-30 miles-an-hour will make it feel much cooler than that.
As the storm moves out to sea it is going to meld with a cut-off upper level low and that will direct cold air our way well into next week. Monday will be the coldest day, with a morning low near freezing and a high in the low 40s. Temperatures are expected to slowly rebound after that, and we could warm to near normal by Thanksgiving Day, but don't count on it being warmer than that anytime soon.