Heating issues

[DClark747]

Hey, guys. A few weeks ago, I rescued my first ball python from coworker.

After keeping her in a glass aquarium (mesh-top), I realized that I was playing hell with my temps and humidity. I went to my local Home Depot a few days ago and bought a 25 gallon sterilite tub. I drilled a few ventilation holes in it, and misted. My humidity shot up to 70% and has only slightly dropped since then.

My temps even went up, but only a little. I'm using a basking light (60W, 120V) (secondary/supplemental heating) during the day, and although she doesn't bask it does well for keeping the temps up during the day. At night I used a Zilla Night Heat bulb. I was also using a ZooMed UTH (primary heating), which in conjunction with the basking light kept my temps around 80F. Out of curiosity, I tried using my own heating pad (which, I know, is frowned upon). Surprisingly, it bumped my temps up to 84F. The problem is that everything I've read about balls suggests that they need to be kept a little warmer than this. Any suggestions?

I could get a higher wattage/voltage day bulb, or even a larger ZooMed mat, although I have the proper size mat for the tub I have.