Well I was canoeing the river the other day and came across a small pool that was separated from the river due to lower water levels of summer. In this pool were about a hundred trout 3 - 6 inchers. Being the big hearted guy I am I couldn't help but feel the need to rescue as many as I could. Needless to say about 20 5-6" rainbows made their way into my pond. I am hoping that they will make it through the summer. Surface temps in my pond reach the 70's, the bottom stays in the low 60's. I saw a few of them today and they seem happy and are eating bugs from the surface. I will keep my fingers crossed and keep you folks posted. Any advice from the trout pros out there?
Not sure if I'm a trout pro but I did stay at a Holiday Inn Express last night.

Seriously, sounds to me like the only thing you can do is wait and see if they make it through the summer. Just be aware just because the bottom temps are O.K. that doesn't mean there is enough dissolved oxygen through the summer.
Do you have any other fish in the pond?