Or does it vary up and down a few degrees? After a week of trying I've still not got mine to hold steady. I have no eggs in it right now just trying to get the hang of it. I can keep the humidity pretty steady between 50-55 % My temps range from 98-99-100 going up and down. Its a LG which I know doesnt get good reviews but its what I have to work with. I put a computer fan in it and have an egg turner in it. Will going up and down a few deg really hurt a hatch? Or is there a bit of room for error?