Philly Weekend Weather Forecast

A warm front will move through this evening with cloudiness. Clouds break Saturday morning as the front moves to our north.  A southwesterly flow will bring very mild temperatures and mostly sunny skies by mid day. High temperatures may exceed 60 degrees on Saturday. It will be breezy as well.

Update Sat 1 PM: An upper air disturbance with moisture at 300 mb has caused mid and upper level cloudiness to develop today.  Sometimes referred to as a ‘dirty high pressure system’.  Not sure if we’ll get the sunshine that was expected this afternoon.

For Sunday, a cold front will pass through early morning with some cloudiness and skies will clear by noon. Temperatures will remain mild for most of the day with mostly sunny skies and high temperatures about 56.   Temperatures will become cooler towards evening.

Update Sat PM: A secondary cold front moves through Sunday evening, so mostly cloudy Sunday afternoon.   It looks like we’ll have some showers late Sunday afternoon.

The outlook for next week – an amplified jetstream pattern redevelops over the eastern US  and the models are hinting at some sort of storm development in the Tuesday through Thursday  timeframe. The details of the storm development are unclear at this time, but expect the mid week period to be very active.