Hardly anything on the radar, so I was ready to head out. Loaded up the bike, walked out of the garage, and it started raining pretty hard. I decided I needed to adjust the fender line (inside the garage).
Rain let up and quit before I made it to work. I don't know if it was the fender or truing the back wheel the other night, but the annoying, once per wheel revolution, thwack! thwack! thwack! was gone. Quiet ride in, rather calming.