High pressure builds in for this weekend. Continued below average temperatures, although it might feel relatively warm.

A weak upper air disturbance comes through late Saturday afternoon.  Sunny in the morning,  but increasing cloudiness expected Saturday afternoon.  High 37.

Updated Saturday @ 4 PM:

High pressure again for Sunday.  Mostly sunny,  Considerable cloudiness, some breaks of sun mid- day.  High 45.

(Average high temperature for PHL this week in March is 51!)