The average high now at Philly International Airport is 84 while the average low is 65; we reached a high of 82 this afternoon after a low of 63 this morning. It was thanks to high pressure taking control of the region.
Overnight we'll have a few clouds with lows in the lower 60s as a wave of low pressure riding along a frontal boundary current across the Great Lakes that will continue to push to the south. This will lead to Saturday featuring a mixture of clouds and sunshine until the late afternoon once the low passes to the south and east. Highs will be in the upper 70s to around 80 with a light northeasterly wind. We shall stay dry however with the showers staying south of the Mason-Dixon Line, but if a few showers pop up from Center City southward they will be short and push southeastward before lunchtime.
After clearing overnight with lows in the upper 50s we'll have sunshine and a northerly wind with highs in the lower 80s. Monday's continued sunny with low humidity with highs once again into the lower 80s. Come Tuesday a warm front will push northward and not only increase dew points(thus making it stickier) and highs will be in the upper 80s after morning clouds and fog.
On Wednesday we'll push into the lower 90s with heat and humidity as well as showers and thunderstorms; this will be thanks to a cold front that will push through overnight into Thursday morning. Overnight continued showers and thunderstorms will eventually come to an end by sunrise with lows in the middle 70s. Thursday afternoon we'll begin to feel drier dew points, but highs will be in the upper 80s with a westerly wind; come Friday we get a Bermuda high-like setup taking shape so highs will be 90 or better as it will be hot and humid. Our only saving grace will be from sea breezes along the shore in the afternoon that will push temperatures there back into the upper 70s and lower 80s so you can beat the heat going into next weekend.
Have a great weekend and don't forget that you can check out the rest of the 7-day forecast(any time) at www.scottderekwx.com/forecast.html.