My tank is sitting at 80% humidity right now, no condensation.

I had to move the tank into my room because the rest of the house is getting colder and my roommate doesn't do well in heat so he usually turns it down. It is much warmer in my room but the humidity jumped from 65% to 80%. Is it alright to keep it at that point and are there any signs I can look for to see if it's causing issues?