water temps

Fished Clark Hill yesterday,water temp was 64.2! A week ago it was 74.4 at the same places! Didnt do as well as last trip!Got to windy to pull boards on main lake points where we have been catching fish! Tried cut bait fishing but only 1 small hybred a lot of nice catfish and one 8 lb large mouth! Got a late start due to bad cranking battery
Jumped off motor and got it running but the tac would not run or tilt wouldnt work or eather the graft, I would think a new 250 E tec would put out enough juce to run these. Sounds as if I need to start fishing Murry again the way yall have been catching keepers.