Hey preacherman .... check this site out : Louisville District Daily Lake Report
I keep it in my "favorites" and check it often for "trends" in water level movement. Click on the blue highlighted numbers under "Today's Pool Feet" and it will show you a chart of water levels for the past year (+rain amounts & inflow/outflow amounts).
When the season is getting into the hotter water period & a Thermocline may be setting up in a lake, you can click on the blue highlighted lake name and it takes you to that lake's main page. Then look for a green highlighted "Lake Temps" link ... click on that and it will show you a graph of water temps & oxygen levels from surface to bottom. Just keep it in mind that the temps at depth and oxygen content levels at depth are taken at the dams of these lakes, so they may not represent exactly where the thermocline is in other parts of the lake. But it will give you a rough estimate of what to expect.