I have kept bows in my hanger for years in AZ without issues. Neighbor had a set of wood laminate cross country skis delam in his uncooled shop. He swears I am on borrowed time. Any experience out there outside of things like closed vehicles where temps can get super high?
heat softens the glue and can cause delamination of strung up bows, you can get a twisted limb in an unstrung bow from the heat too. I have not left a bow in high temps but have heard that others have and had a bow come apart..when I'm shooting in the yard I take my bow in the house even if I think I'll only be a minute.