So I was considering a trip out to Smith Rock the first week of June (just happen to be coming to Portland for a work conference). Is the weather sufferable for climbing? Any idea what the temperatures will be like?
It can be done, although you'll be chasing shade and starting very early. If I was you I would take the opportunity to check out the very good climbing in the Portland Area, June is typically very good weather in Portland, and the only time I want to be in the area. Look at Ozone, French's Dome and Broughton's Bluff.