Having some trouble getting the temperature/humidity stable. My setup right now is:

A 16qt. Sterilite Tub with 10 holes drilled at the top (three on each side and two on each end), and I've kept the lid on.
A Fluker digital thermometer/hygrometer. I looked at two different Wal-Marts and had no luck finding the Acu-rite.
A small water dish, full.
Two hides made from cool-whip bowls.
And finally, a small Zoo-Meds UTH.
Also, some newspaper for substrate.

I have the thermometer/hygrometer positioned slightly more on the warm side of the tub, and it's been going in the same condition for about four hours, and the highest the temperature has gotten is 80 degrees F. My humidity is a bit higher than it should be, ranging from about 69%+. And right now, and for the past while, the temperature has dropped to 76 degrees F, and isn't moving. I would take pictures, but I seem to have lost the charger for my camera, been a while since I've used it. Any help would be appreciated.