yea, that's a tad bit high. 50% is baseline. you are probably just a little heavy on the watering. if you can, have a small fan blow across the soil line and water less for a bit. scoop out the top layer there and replace. should be fine. is it a sativa or an indica? is the humidity intentional? It might be just building up because the excess evaporating water can't escape the dresser so consider ventilation/airflow or less water.