High pressure anchored over Long Island and New England will provide excellent weather to start the week, which I'm sure will be a comfort to those sitting in their office. The excellent weather conditions won't last long though as unsettled weather conditions return by mid week.
Today through tomorrow, high pressure will generally remain in control with clear skies to scattered cloud cover. A passing disturbance may produce the threat for an extremely isolated shower over the region, however most locations will remain dry. Winds will be from the south at 5 mph. Temperatures this afternoon will range from the lower to mid 80's over much of the Philadelphia and New York City metropolitan area, upper 70's to lower 80's over Long Island. Low temperatures tonight will range from the upper 50's to lower 60's. High temperatures tomorrow will range from the lower to mid 80's over much of the Philadelphia and New York City metropolitan areas, upper 70's to lower 80's along the immediate coast and Long Island.
On Wednesday and Thursday, a series of cold fronts will dive southeast from the Great Lakes through the Philadelphia and New York City metropolitan areas leading to scattered showers and an isolated thunderstorm. The strongest thunderstorm will be capable of wind gusts over 30 mph, occasional lightning, small hail, and heavy downpours. Temperatures will range from the mid 60's for lows and lower to mid 80's for highs.
Friday through Sunday will feature a back door cold front that will linger over the Philadelphia and New York City metropolitan areas leading to scattered to overcast cloud cover and a threat for widely scattered to isolated showers. Low temperatures will range from the upper 50's to lower 60's over the interior and mid 60's along the coast and in urban locations. High temperatures will range from the lower to mid 80's on Friday and Saturday and mid to upper 70's on Sunday.