Winter is here and in the northern parts of the country it is probably cold outside. Does that make your arthritic joints even more painful? Some studies show that certain weather conditions can worsen the pain of osteoarthritis. Other studies find no effect. Ultimately, it is your experience that matters. Cleveland Clinic physical therapist Heidi Lehlbach, PT, finds that for many of her patients, weather, and especially big changes in temperature, affects their joints.