I worked as a copier technician in the Rogue valley for several years. So, I spent a lot of time driving in all conditions. I would say that the blinkers will help. However, if you want to be seen, wear a reflector (construction) vest. Even in the worst fog, those really stood out.
I rode my bike there also and it is a great area for bikers (well, other than trying to get from one side of Barnett and Riverside to the other). Because of the nature of my work (and that I lived in Hornbrook) I never did bike commute; however, if you live in town, or near a bus stop, it has evrything going for it. It is reasonably flat, it never gets to cold (cold, but not to cold) and the mornings are cool in the summer. When I was working there I always wanted to move closer to town but it was out of my price range.
You will have fun, do it.