Eastern Oregon Fishing Report and Forecast Posted on November 18, 2021November 18, 2021 by Glenn Zinkus Imnaha River Bulls and Steelhead. Weather Outlook Across Central and Eastern Oregon: Northeast Oregon starts off with some snow and rain showers on Friday, becoming sunny for the weekend and through the first half of... This post is only available to Members. If you are a Member, please be sure to log in and remember to select the Remember Me option. If you want to become a member or find out more, take a look here.