Yes this is prespawn. Bucks start cruising the shallows in the mid to high 50's, and actual spawn seems to start @ 58 - 62.
This is when I personally do my best. What works for me is identifying the spawning flats, last years knowledge of the spawn is the best, but it should be relatively shallow and protected water. I then triangulate the nearest deep water 25+ with nearest feeding breaklines in the 8-15' depths. At your water temps, you should be able to find staging and feeding bass in this zone, from dirt shallow to hugging the bottom in 20+ft. Spend your time in this concentrated area and it should produce, and drag the bottom more often, you'll find fresh bright green weeds which might indicate to spend more time there.
Also if a continued wind beats on a bank for a day or two, I would definitely target it. The gathering of all the warmer surface water in one area seems to set the whole food chain off. I also target colorlines where the dirty water meets the clear water. For these 2 instances, I fish baitfish imitating baits and move them quickly and erratically.
Others are far better and more experienced but this has worked for me.
scott