Willamette, McKenzie & Santiam Rivers Fishing Report for Sept 18th Posted on September 17, 2015September 17, 2015 by Michael Teague Flow at Willamette Falls has not changed over the past two weeks although the water temperature did drop two degrees over that period of time to the 68 degree reading... 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.