Typically the ambient air temp in the room is a few degrees lower than the air temp in enclosure. But in either case I use these as a rough basic
80ºF cool end surface (give or take a few degrees)
90ºF Warm end surface ( Ditto)
Ambient air temps inside the enclosure (75-85ºF) It can be cooler but personally I would not suggest extended periods cooler. If it is usually warmer the hot spot might need to be rethought. The gradient system should likely give way to a mono temp system some use.
Your temps for air temps sit inside this so there shoud be no issues at all.