Hi Dave,
Mike in Wallingford. Wednesday and Thursday night 45 degree low. I believe cool but not as cold next week. After that we are supposed to go above normal temperatures for awhile.
Beautiful trees. The natural light like you have should help to keep the leaves from dropping going outside.
I've noticed it is a pain going from fluorescents to natural light. Live and learn.
My plants are much smaller, but were only inside three nights the last two weeks and doing great, @100 gallon pots.
Good luck