Willamette River Fishing Report and Forecast May 18th, 2018 Posted on May 18, 2018 by Bob Rees Willamette River Fishing Report – Lake Willamette is not performing like one would think for mid-May. Catches in the upper reach have gone stagnant. Sorry for those that read last... This post is only available to Members. If you are a Member, please be sure to log in. You can do this on the top right of almost any page on our site. If you want to become a member or find out more, take a look here.