Updated Sun 09/17 @ 6:03 PM — It appears that some rain will linger here in the Delaware Valley until about 10-11 AM Monday. Cloudiness will linger longer…until about 2-3 PM.

More info in This Week’s Weather to be posted this evening.

Update Sat 9/16 10:51 PM — It looks like rain will only affect eastern NJ and the shore on Monday. but clouds linger here with some clearing in the afternoon.

Update Sat 9/16 9:39 PM — This evening’s models are showing showers moving in as early as 3-4 PM Sunday.

A large dip in the jet stream will spawn a coastal low pressure system late Sunday and it may affect our weather with rain Sunday evening through early Tuesday.

Water Vapor image (channel 9) captures mid and upper level flow (jet stream level) Saturday afternoon. White arrows show the general location of the jet stream. A low pressure system (blue L) will be form and move up the coast later Sunday through Monday with rain.


Sunny in the morning. Increasingly cloudy beginning 12 to 2 PM. Showers move in from the west between 5 PM and 7 PM.

Model temperatures have a higher than usual uncertainty (spread) due differences in forecast cloud cover. sd =2.5º

High temperature 76.7º ( NBM model— location Blue Bell, PA)
High temperature 79.3º ( NBM model— location Philadelphia, PA)