It'll probably be fine. My bunnies change from going in and out all the time.
When I first got Zakura I kept her in my bedroom, as it was the middle of December and she was not used to outside temperatures. I then moved her out as spring came, then back in at winter.
During the winter I started having problems sleeping (some bunny can't shut up:roll: ) so I took her to school. There she was kept in the storage room which had almost outside temperatures, by gradually getting her used to it she did fine, despite it being the middle of winter. :shock:
Then I got Sasuke in May, and he was kept outdoors, as I only had one outdoor hutch at the time I kept Zakura indoors again till I got the new hutches.
Then both of them stayed outside the whole winter. (I wasn't allowed to bring Sasuke in and figured I might as well keep both outside so they could keep each other company, despite the fact they live in seperate hutches they seem to prefer it that way)
Then this summer I got Aroma, born and outdoor bun, but I moved her indoors once again for lack of outdoor hutches.
However this automn Sasuke got sore paws, so I decided to have him and Aroma switch cages to keep him away from humidity.