So far it happend to my AP105 and AP125. AP105 even burned from overheat. The enviropment is a 24/7 air condition lounge area. i don't think outside factor has anything to do with the AP's temperature in this case.
i tried this command but don't see the temperature.
Aruba#show ap debug system-status ap-name <AP-name>(or)
Aruba# show ap debug system-status ip-addr <IP-addr> | begin Temp