Quote Originally Posted by Rhasputin View Post
Your rats will almost certainly not survive, and if they do your production will be terrible. They need an air conditioner. 80 is the highest I would go with rats (or most any rodents), especially if you're wanting them to breed.
Judging by the posters signature I'm guessing they know more about rats than I do, but I'll just advise you from personal experience. They will be fine in those temperature ranges. I live in the Mojave desert and I keep my breeders in my garage. My temps on hot days reach 100 in my garage and I never have rats die. Their production does slow down, but doesn't stop completely. I build up a rather large supply of F/T during the fall/winter/spring so it doesn't bother me. I just make sure they have plently of water and I'll throw ice in their water bucket on hot days. I also slightly lift the garage door and open a side door to get a breeze through my garage.