They have a lot of shade from the trees, and I keep the big coop door open day and night (don't have a problem with predators, just neighbor's dogs getting loose). I also put out ice bottles for the flock to lay against if they get hot (also do this for my rabbit).
I would lock them up at night if they don't have a secure run, it's only a matter of time before a predator comes along. And loose dogs are a big problem. You can add little windows to your coop with welded wire screwed over them. Don't use chicken wire a coon can chew through it and don't use staples they can push them out. Just trying to help hate for something to get in one night. You would sleep better
