Fished Whatcom. Water temp = 64. Started on Northern end pilings. Used silver and blue rattle-trap and green jig with white grub trailer. Had some sporatic luck. Moved down the lake (still in the northern section) on the east side to the last set of pilings before hitting the deep portion of the lake. There is a large rock that is visible heading towards the shoreline. In this area there is a rocky ledge. Caught quite a few large smallmouths starting in this area throughing chartuese 3/16 oz spinner bait with white grub trailer. One was about 5 pounds. Followed the pilings northward, casting towards docks and caught a few more smallies. Tried to keep the boat in water between 10 and 15 feet.
Good luck