On the weather map, the corridor of showers and thunderstorms that brought rain to the region yesterday and overnight has shifted just south and east of the city. Early this morning, mainly light showers were moving northeast across southeastern Virginia into southern New Jersey and far eastern Maryland. This activity will remain east of the city but affect eastern parts of the viewing area. Much drier air will sweep over the region on active westerly breezes during this morning and afternoon as a vigorous cold front moves east off the Northeast Seaboard, this will cause skies to become mostly sunny by midday.

A sprawling Canadian high pressure zone will move slowly east from the middle of the country tonight to the East Coast by Tuesday evening. For tonight, winds will gradually subside and skies will be mainly clear. Temperatures in center city will fall to near 40 Monday morning and again Tuesday morning. Outside of the city, temperatures will fall into the 30s, with the potential for a killing frost in a few sheltered suburbs early Tuesday morning. Monday will be mainly sunny, breezy and cool, though a weak disturbance passing overhead in the afternoon will stir up some patchy cumulus clouds. After a clear, cold night Monday night, Tuesday will be mainly sunny before clouds increase late in the day ahead of a warm front approaching from the Ohio Valley.


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