The latest NAM just in shows showers early Saturday morning, ending late morning.  This is a significant change from previous model runs.

As forecast, a weak disturbance is approaching today, with cloudiness and a chance of very light showers during the afternoon.

Exact timing of these light showers is difficult, but early afternoon, about 2 PM, is a best guess.

Somewhat heavier precip is possible in the far northern suburbs of Philadelphia this afternoon.