Thursday was a decent day with sunshine, fair weather cumulus clouds in the afternoon, and then some isolated showers and thunderstorms in the afternoon due to the short wave passing by to our north. After a low of 66 this morning at Philadelphia International Airport we reached 84 shortly after 2:30 in the afternoon. Once the sun set the "heating" that fueled the clouds dispersed and we'll have a mostly clear night as lows dip down into the lower 60s(middle and upper 50s in the suburbs and cooler spots).
High pressure is sitting on top of the Northeast and will situate itself there throughout the weekend and into early next week! Friday will feature sunshine and fair weather clouds in the afternoon with a continued northerly wind; highs will approach the middle 80s. After an overnight low in the lower 60s Saturday will be a touch milder with highs in the middle to upper 80s with more of a southerly wind as high pressure moves a bit to the east and we'll get that milder flow.
On Sunday there is a "changing of the guard" with a newer high pressure area pushing in from the north so highs will be closer to the middle 80s with a more easterly(onshore) wind. That will continue into Monday as well, but then on Tuesday we'll get back into that southerly flow with highs approaching the middle 80s. There will be increasing clouds in the afternoon, but showers and thunderstorms shall hold off until the overnight with lows in the middle 60s and continue into Wednesday with highs close to 90 as a frontal boundary pushes in from the west.
Come Sunday high pressure will position itself a little further to the east so we'll have an easterly wind(onshore flow) so highs will be in the lower 80s. It's short lived as another area of high pressure moves in for Monday(like a changing of the guard) and we'll be back into that milder southerly flow with highs in the middle 80s.
Don't forget that you can see the 7-day forecast(as well as obtain radar and satellite maps) any time at www.scottderekwx.com/forecast.html.