If you played hooky on Friday I understand why you did it; it was an amazing day with sunshine and fair weather cumulus in the afternoon! Philly International reached 84 degrees just shortly before 4pm and there was isolated showers that stayed to the west, but otherwise with an easterly(onshore) wind it felt great as it wasn't too warm thanks to the 65-70 degree ocean water temperature.
Overnight we'll be mostly clear(there's a few higher clouds, but are slowly dissipating) with lows in the middle 60s; Saturday will feature nothing but sunshine thanks to high pressure parked on top of the region (well, a few fair weather clouds in the afternoon....but it stays dry with no rain chance at all) with highs in the lower 80s thanks to a continued easterly wind.
After an overnight low into the upper 50s we'll be into the middle 80s on Sunday with continued sunshine as high pressure begins to push to the east and we'll get more into a southerly flow; this also means that the humidity levels will rise a little as well, but not too big of a deal. There will, however be a warm front progressing northward on Monday so highs will be in the upper 80s with a chance of showers and thunderstorms in the afternoon.
The heat and humidity returns for Tuesday with highs in the lower 90s as a cold front will slowly progress eastward; there will be a chance of showers and thunderstorms in the afternoon leading into the evening with lows in the lower 70s. The shower/thunderstorm threat lingers into Wednesday as well with highs into the lower 90s, but once the front FINALLY pushes through overnight we'll begin to clear out with lows in the middle 60s.....
This means that Thursday and Fourth of July look dry and seasonable with highs into the lower 80s and into the middle 80s for the holiday weekend with humidity creeping back into the picture.
Don't forget that you can check out the rest of the 7-day forecast(any time) at www.scottderekwx.com/forecast.html.