Hi- The more live plants you put in the cage the more humidity they hold in, ficus trees are good for this. You can also put damp terry cloth towles over the sides of the cage to hold in the humidity when needed. Where are you taking the readings from in the cage, and are you using an anolog gauge or a digital one? You will get a more accurate reading with a digital one! Also by misting the cage it will help with humidity. Hoep this helps!
:ok my cage is complete less the chameleon(still a few weeks away). the cage temp is about 80 degrees and the basking spot is 92 degrees, but i can't get the humidity above 60%. is this going to be a problem?