I was living at your location (Royersford) in the 90s when this hit right up the road. I wish we had all the weather capabilities back in those days (internet). But then again I may have been an idiot, tried to chase and get pummeled by a flying cow...
72F / DP 51F
50s are fine and won't be till the "wee" hours...60s most of the evening hours.
After last night's rain/moisture they'll be jamming tonight...
Sunny 81F / DP 62F
DPs starting to drop. 68F earlier this morning, 63F now. I fully expect dews in the 50s this afternoon and one hell of a good sleeping night coming up. Windows open, temps in the 50s, low dews and the sound of critters outside...
75F / DP 63F