Sounds like a relatively normal fall sou’easter to be honest. Big Lakes low and warm sector with a fine convective line....seems to happen 1-2 times a fall, no?
You get ups and downs... but honestly it seems like you are just trying to get folks riled up. You get a day of 70F and then a day of 50F....that’s fall.
Regardless, average highs are still up there, it’s not like it should be 45F for maxes. That’s closer to Thanksgiving.