At 6:00 today, I left town and go down the mountain, as they call it, for a concert. When I left, it was a perfectly seasonal 60 degrees. When I left the concert in Charlotte at 10, it was a bit chilly, but not to the point where I needed a jacket.
I didn't even notice it when I was in the car, but as soon as I got back to my apartment and opened my car door I got blasted with it. It is 29 degrees. My apartment was a popsicle. Fortunately it seems the pipes are well insulated.
I don't actually have a thermostat, it's baseboard heating. It's about that time where I'm going to have to remember to turn it on if I'm not going to be back before nightfall.