When I looked yesterday it was brief when rain was moving in. Once the rain hit the ASOS they wetbulbed down. So I think the 6-8F was okay. But I agree they have seemed to be running a couple too warm for awhile.
The MADIS stuff can be tricky with them on the water as new stations come online inland. MADIS can struggle with coastal locations with the magnitude of the error and can slightly drift as more stations come online. But large, sharp jumps are still a red flag and that image definitely shows there was a step change that fits the ~2F too warm I mentioned.