Tires, Wheels, and Brakes - When temperatures affect tire inflation
When outside temperatures drop or soar, tires tend to lose pressure. A drop of 10 degrees F (6 degrees C), in fact, will decrease a tire's air pressure by 1 or 2 pounds.Tires can lose even more air in hot weather. Under-inflated tires can result in accelerated wear and poor driving performance. If you live in a place where temperatures vary a lot, check your tire pressure often and add air as needed.