Oh yes, the weather definitely does affect our knees and other joints that haven't been replaced. I was doing really well with my tkr about 3-4 years ago until we had a super cold spell come through. We had 18" of snow and the temperature was -11, unheard of in Virginia. Well, I had to shovel some snow so I could get around out there. Even after wearing longjohns, and two pairs of over pants, my knee got cold. It actually felt like the implant got cold. Who knows if it did or not, but it HURT big time. It took an hour or so for it to warm up and quit hurting. So yes, weather can still affect us even a few years after a tkr.