Hit 21.7F here a bit ago with the thin overcast, but it bounces around the low 20s depending on cloud density and how much longwave is reemitted back.
There will be 2 boundaries going through Christmas day. The first one is with a mid level front that'll kick the core of the LLJ east. The flow veers from the SE to the S at the sfc and temps may drop a couple of degrees behind it. Then a few hours later we get the actual real CAA and sharp temp drop.
If it completely goes, then great. I get my driveway back and the birds get their grass back for the time being.