no complaints here about the Seattle weather. I'll live with triple digit temps a few days every 5-10 years. And rain... well, we don't get much in the summer. In fact, we set a record this year with about 27 days straight without rain back in June. July and August generally see very little rain - maybe less than 2 inches for that 60 day stretch. Summers are great here. 52 degrees - that's perfect in the mornings! Still just shorts and a jersey at that temp for my morning commute.
October and November - yes, it starts raining. That's what the fenders and mud flaps are for. The temps are still very comfortable with some light rain gear. I'll take the weather in this part of the country over most other places for riding (I think I would still prefer San Diego weather to anything!)