I never ride in the rain when I can avoid it, but in the summer I do get caught in pop up thunderstorms more often than I'd prefer. It's unavoidable around here. I don't mind getting wet, but I worry about the bike. Never had any real problems, but the drive train always seems a bit noisier on the next ride.

(Got lucky today when the storm went right up the center of the loop I was riding. Got a mile or so of light rain, then later a mile of wet roads, but otherwise stayed dry although I could see it was raining hard at times within a mile or so.)