My 2 torts have been outside since Feb and this will be there first winter outside. We live in Ocala, FL so it does get a little cold here. The rental that we are in does not have power to the outside so I do not know how I would be able to give them heat at night. I can bring them inside at night but i was wondering how cold is too cold. this weekend it is going to be a high of 80 and lows in the high 50's.