It's still pretty cold. I have been out a couple of times when the temp. was up to 85 degrees, but the water was still balls cold. The only way I would go out now is if I had a dry suit.
You can check the temperature at Willamette Falls at the Oregon Dept. of Fish and Wildlife site. They are only a couple of days behind right now. here is the link. You have to scroll down the page. It's listed in the falls counts and conditions tables. www.dfw.state.or.us/ODFWhtml/InfoCntrFish/InterFish/Willam.html