In the wild they have humidity up around 100% all the time. It's not humidity you need to worry about, it's condensation, they don't have that in the wild habitat, but we have that problem as keepers.
As long as no water is dripping on her from humidity inside enclosure then you should be fine.
Humidity in my tubs is around 70% all the time, and I never increase even for sheds (they never need it and it will cause fogging of the tubs).