Oh please, no. I'm really no fan of weather at all, immersion be damned. The black darkness of Angmar which requires the player to crank up Brightness to see anything and conversely, the equally annoying "White Outs" in High Pass are really just too much.
Thank *GOD* Turbine went easy on the weather for Book 13.
I pray that the horse whistle I read about in this thread will not be as annoying as the player horse head-bobbing or the equally disturbing avatar body scratching that were added, then quickly removed, with Book 12.