During the day, the cool zone should range from 70 to 80 degrees Fahrenheit (21 to 27 degrees Celsius while for Jackson’s Chameleons the warm region should be 80 to 90 degrees F (27 to 29 degrees C), or for Veiled Chameleons from 90 to 100 degrees F (32 to 38 degrees C). Until your home sinks below 65 to 70 degrees F at night, night heating is not required.