The temperature inside a dryer can vary depending on the type and model of the dryer, but typically dryers reach temperatures between 125 to 135 degrees Fahrenheit (52 to 57 degrees Celsius) during a regular drying cycle. Some dryers may have higher heat settings that can reach temperatures up to 150 degrees Fahrenheit (66 degrees Celsius) or more for specialized drying purposes, such as sanitizing or removing certain stains. It's important to note that these temperatures refer to the air temperature inside the dryer and not the surface temperature of the dryer drum, which may vary.