What it's gonna hurt? I mean, I can see the String drying out. But if you wax it good, wouldn't the heat melt the wax into the string thus protecting it? 100 degrees is not going to effect your limbs or riser. Sure I wouldn't make a practice of storing it in there for days on end. But short periods of time (8-10 hrs once in a while) I'd need to see some proof of it being damaging
I guess I was thinking the same thing as GR8atta2d, how is it any different if I am hunting in late summer for antelope in a blind when it is 100 degrees out? I have been leaving my bow in my truck at least once a week all summer long. Maybe I should reconsider and just bring it inside. Hmmmmm