Well, as we discussed on AIM not too long ago, you're using stick on thermometers, which are known to be inaccurate. So hurry and find a nice digital thermometer(Acurites are good) to measure them temps.
I'd say if it really worries you, turn off the heat pad until you get a digital thermometer and can accurately measure the temp in the hide. 100 is too high, but you're using stick-ons so you cant trust that reading 100%.

As for the day and night cycles, I dont think burmese pythons need them. But if you do want to keep a day/night cycle, remember to have 12 light, 12 dark. You can continue to use lighting at night by using an infrared bulb which doesnt bother them at night.

Here's a good caresheet to read up on. Good ol' NERD.

http://www.newenglandreptile.com/CareBurm.html