Thursday was a nice late August-feeling day with sunshine and then fair weather cumulus in the afternoon once we reached our convective temperature(the estimated temperature that the surface must warm to for clouds to develop). After a low of 65 we reached 84 at Philadelphia International Airport. There were a few isolated showers that popped up as a short wave that was rotating through the north and west, and wouldn't you know it? That's where those showers stayed(primarily north of Allentown).
Overnight will be mostly clear with lows in the lower 60s; if you enjoyed Thursday then you'll love Friday with high pressure still parked on top of the region! Highs will once again be in the lower 80s with a northerly wind, but shifting more to the southeast by the late afternoon; this also means that the shore will have a nice sea breeze so temperatures will be in the 70s.
The weekend will be 3/4 dry and enjoyable; Saturday will be the "pick day" of the weekend with high pressure still in control and highs in the lower to middle 80s with a continued easterly(onshore) wind. Come Sunday a frontal boundary will be riding up along the Appalachians and we'll have increasing clouds in the late afternoon with highs in the middle 80s; the showers and thunderstorms should hold off until the evening and then linger into Monday morning. By the afternoon we'll have clearing with highs in the middle 80s.
Now if you are a fan of the heat and humidity(first off, you're crazy...but that's just MY opinion) it shall return starting on Tuesday as we'll get more into that southerly flow with the Gulf of Mexico moisture sliding up the Eastern Seaboard. It will be a sunny day with highs approaching 90, but come Wednesday there will be a cold front approaching from the west; this means that it will be a hot and humid afternoon with highs in the lower to middle 90s before clouds increase by the late afternoon. Showers and thunderstorms will hold off until the overnight with lows in the lower to middle 70s and will continue into Thursday with highs in the lower 90s.
Remember that you can view my 7-day forecast(any time) along with satellite and radar images at www.scottderekwx.com/forecast.html.