According to the COE call line (ph# 1 270 465 8824) ... temp is 44deg surface (likely taken at the dam) and the lake level is 2ft below Summer Pool & falling.

You can also keep track of what's going on, here : Louisville District Daily Lake Report ... and click on the blue highlighted number under "Today's Pool Feet" for a precip/outflow/water level graph (for the past year).

... cp