85 ambient....No
You can have a 77-80 ambient overall, 85 is pushing it if you ask me with that a hot spot could be taken away.
With humidity i run roughly 55-65% more humid early when humidifier on then let it fall out night.
My ambient in room is roughly 78+/- so open air ARS rack its again roughly 78+/- with a hot spot of 90.
I believe if you had a ambient of 85 he'd be sitting on or around water ALOT.