An area of low pressure developing over the Mississippi River Valley this morning will bring the threat for light snow to the Philadelphia and New York City metropolitan areas by tomorrow morning.
High pressure will shift off the East coast this afternoon leading to increasing clouds and winds from the southwest at 5 to 10 mph. Temperatures will rise into the mid to upper 40's for most locations, possibly pushing into the lower 50's over southern New Jersey.
The area of low pressure over the Mississippi Valley this morning will track towards the New Jersey coastal waters by tomorrow morning. A mix of rain and snow will move into the northern Mid Atlantic after midnight with the mix gradually changing over to snow for the entire region. Snowfall amounts will range from a trace over eastern Pennsylvania and southern New Jersey to over four inches in portions of northeastern Connecticut. Most locations can expect one to three inches of snow before the precipitation exits before noon. More details can be found with the snowfall map. Temperatures will hold in the lower to mid 30's through tomorrow.
Skies will clear by tomorrow evening as an Arctic cold front exits off the coast with temperatures crashing through the 20's and into the 10's and single digits. Winds will increase from the northwest at 10 to 20 mph.
Arctic high pressure will be in control Sunday through Tuesday with tranquil weather conditions. Temperatures will rise into the upper 20's to upper 30's for highs on Sunday but begin to moderate for the start of next week. Temperatures for next week will range from the upper 10's to upper 20's for lows and upper 30's to upper 40's for highs.
A cold front will move through on Wednesday with scattered snow showers followed by scattered clouds through Thursday. Temperatures will range from the upper 10's to upper 20's for lows and upper 30's to upper 40's for highs.