An area of low pressure over the Mississippi River Valley this morning will bring scattered showers to the Philadelphia and New York City metropolitan areas late tonight into tomorrow morning to kick start the weekend. The good news is that by mid morning tomorrow, the showers will be gone and skies will be clearing!
Clouds will increase through this afternoon with an isolated shower possible by the late afternoon hours. Winds will be from the south at 5 to 15 mph. Temperatures will rise into the upper 50's to lower 60's over much of the region, mid 60's in urban areas.
Tonight, the area of low pressure will move through the region with areas of scattered showers expected. The showers will be heavy at times and capable of localized urban flooding. The showers will develop after 9 PM tonight and continue through 9 AM tomorrow. Winds will veer to the northwest at 5 to 15 mph. Temperatures will fall into the mid to upper 40's.
High pressure will take hold by tomorrow afternoon and remain in control through Monday with scattered cloud cover expected. An isolated showers is possible but not expected. Winds will be from the northwest at 5 to 15 mph. Temperatures tomorrow will rise into the mid to upper 60's for highs, upper 50's to lower 60's over Long Island. Temperatures on Sunday and Monday will range from the mid 40's for lows and lower to mid 60's for highs.
A slow moving area of low pressure will approach from the Tennessee River Valley to produce periods of rain Tuesday on through Thursday. An easterly wind is expected to develop that will transport a cool marine air mass into the region. Overcast skies and drizzle can be expected between the periods of rainfall as a result. Temperatures will range from the upper 40's to lower 50's for lows and upper 50's to lower 60's for highs.