We have a trough over the Central/Eastern US that is reinforcing itself , and in response we have a frontal system that will cause somewhat unsettled and humid conditions over the next 48 hrs
This morning we had a bit of a warm front come through which lead to scattered but very heavy showers/thunderstorms as moisture builds into the region , that disturbance is now exiting which will lead to some drying out this afternoon with variable cloud cover, increasing humidity and seasonable to maybe slightly below temperatures in spots , I can’t rule out isolated shower/storms popping up during the heat of the day but most locations will likely remain dry for the remainder of the day
We see the scattered showers and storms beginning to enter extreme southeastern sections and should scoot off the coast soon , our next thing to deal with will be the cold front which is currently draped across the Great Lakes region, this will swing east and introduce a more widespread chance of rain starting later tonight and tomorrow morning for western areas, than gradually sliding east during the day, the best chance for any stronger storms will be east of the Delaware as the frontal system will likely be passing during the afternoon hours and the heat of the day , not much severe weather expected but like we have seen about a million times this summer, very heavy rains and flash flooding will be the main concern , any stronger storms could have gusty winds as well.
Temperatures on Tuesday will be in the lower to mid 80s for most of the area , I wouldn’t rule out that some areas that get breaks of sun make a run towards the upper 80s, especially more towards SW NJ/Philadelphia areas and mid to upper 70s in the usual cooler spots around NE PA , with variable to scattered cloud cover
The front will sweep through the region by tomorrow evening /early Wednesday morning which will introduce a cool and very dry air mass for the remainder of the week with temperatures below seasonable norms in the mid to upper 70s for most and some areas of NE PA may not break out of the 60s , for lows generally low to mid 50s for most of the area, mid to upper 50s along the immediate coast and some upper 40s possible in NE PA, this will be the general theme through the weekend with sunny and clear skies!