Use the adjective blistering to mean extremely hot. You might love living in Georgia, except for the blistering heat in the summer time.
A baker has to remove her loaves of bread carefully from the oven because of the blistering heat. You can also use blistering to mean a different kind of heat: "Her blistering criticism took him by surprise." Or a racer might set out on a track at a blistering pace, one that's incredibly fast or impressive. The original, hot meaning of blistering comes from the idea that something is "hot enough to form blisters."