New pads and rotors about 10k miles ago. No issues until about 2-3k miles ago. When damp outside (but not raining), or any normal conditions, there are absolutely no braking issues. When it's raining a lot, my driver side front brakes grind really bad and don't feel like they are doing much. The second everything dries, they are perfectly fine again. I've looked at the brakes and don't see anything that stands out as wrong. Any thoughts?