The right temperature depends on the type of incubator you have. It is different for still air and forced air.
It is hard to get anybody to agree on what the right humidity is. I shoot for 40 to 45% for the first 18 days and 65% for lockdown with my 1588. When they start hatching, the humidity goes through the roof. Others have success using different humidities, even with this same type of incubator.
Did you get instructions with your incubator? If you did, I suggest you follow those instructions your first time hatching. The manufacturers really want you to have success so you will recommend their incubator to your friends and they know their incubators better than we do. Get a decent thermometer and hygrometer and calibrate them, keeping records of what happens. After your first hatch, access your unhatched eggs to determine how you might improve future hatches.
If you did not get instructions with your incubator, tell us what you have. Someone who has a similar one may be able to give you pretty good instructions.