damn...and i thought my veg cab was too hot when it hit 81.5...thats a really high temp your gonna need some type of exhaust fan to remove the hot air...i just have a 6in. circulatory fan on the floor and keep it cracked 6 in. but my temp has never went over 82...u really need to fix the temps cuz your plants will def. die when the temp is 100...at about 90 deg. a plant will die after days of continuous heat, with mass stretching and eventual death...this might sound crazy but try keeping the closet closed a lil more...if i open my closet over 6in. the temp begins to increase at a steady rate...kinda weird but i think the room is actually hotter than my closet