You should maintain your hot spot 88 at the lowest to 94 at the highest. (90-92 is ideal) at night it can drop some but should not dip below 80 and 85 is better. The ambient temps may or may not have much to do with the hot spot. What is your cool end hide temp? Sometimes the high ambient temp is due to high cool end temps. Check your ambient temps and drop them if they are over 86 I like to have mine between 79-83 on cold nights they sometimes are below 77 and the hottest day above 85 but that is never for long. Air temp not surface temps...
today my temps look like this,
inside the hot hide surface is 91.4 hide air temp in the hide is 90.7
inside the cool hide is surface 80.6 and ambient air in the hide is 81.1
The enclosure air temps centre over the hot side is 83.5 over the centre of the cool end is 82.5 and the dead center 1/2 up the height sides and front of the enclosure is 82.8.
I have good air flow that prevents stratification of temps so they are quite even everywhere. When the snake occupies the hide the ambient temps raises as part of the animals body blocks the door. It will raise 3 or 4 degrees in time more if the animal is digesting.
