heat problem

right now the temp in my steatlhy grow cabinet is about 88-100 degrees farenheit . . . . ive read that its recomended to grow at about 65-85 so i was just wondering if it would have any undesired effects and if anyone had any suggestions for a good way to cool it down in there
the dimensions of my grow space are W 2feet L 2 feet H 3feet
i have one 80mm PC fan that is not used as an intake or an outake fan . . . ( i had a bit of trouble with getting it to stay there . . . it kept falling down )
and so far seeing how i got 5 plants at there 15-16 day old mark , i only have 3 - 45 watt CFLs

that hot will fry your plants unless you have a strain that is known to grow at those temps. secondly if all 5 of your plants turn out to be female you'll want to flower those at a max of 8in and they should stretch, but you need more lights to flower properly in the cab, line the inside with mylar or other reflective material avoid foil. and as for heat you need an intake down low for cool air to come in and an exhaust towards the top.