Mine goes between 45-60. Depends on how bad it is outside. It's 93% humidity with a dew point of 66 right now so the tank is at 60% and its horrible horrible weather >_<
I was thinking of soaking it then when its done expanding I'll put it in a baking sheet and cover it with a screen and let it airdry outside. I need to cover it outside cause its very windy here and dont want it to blow away.