Okay, so maybe it isn't really a super-power, but at a ripe old age of 23 I make a fantastic barometer. (a tool used to measure atmospheric pressure) I bulged a disk in my low back about ten years ago. I'm noticing that the older I get, the more sensitive my back is to temperature and pressure! It's been screaming the last 24 hours, we must have a storm or a cold front moving in!
Not only am I a good barometer, but I have multiple places a reading can be taken. Osgood-Schlatters in my right knee, whiplash that never really healed from a car crash a few years ago, and a nose that has been broken several times are also capable of predicting storms and temperature changes!