The models are again holding back the rain until late afternoon.

Based on the latest model runs, very light scattered sprinkles are possible 3-5 PM today in the immediate Philadelphia area, but the main area of rain arrives between 5-7 PM, moving up from south.

Last night’s model runs show a somewhat earlier approach of the rain Sunday afternoon, now expected between 2 and 5 PM, earlier far southwest of Philadelphia.

Indeed, current observations (Real Time Analysis) in West Virginia and Virginia show a larger swarth of rain now than had predicted by most of the models.  The model blend has moved the precipitation earlier.