Here at the station we experienced a low temperature of 53!
We haven't seen temperatures this low since May 17th, but I know we can all handle the cool mornings as we finish the first week of Fall.
One reason we are experiencing the cool low temperatures is due to the Low pressure system over the Carolinas. This Low is swinging NE'sterly wind down the App. Mountain Range, which really dries out our air. The dry air and clear skies allow plenty of longwave radiation, which can remove plenty of energy from the surface.
We could see Dewpoint Temps in the upper 40s, which is certainly a major change from our normal in the 60s.
Enjoy the nice weather!