Cool nights are helping to improve the trout fishing while the bass bite is still on during the warmest part of the day.  Spin fishermen are finding bass on spinners and small spoons.  Fly fisherman are finding trout in deeper areas of the lake on nymphs and small streamers.  Look for fish on the surface early and late in the day and try just about any terrestrial pattern on the surface; hoppers, ants, and beetles are great choices.