Depends greatly on how hard, and how recently, you've been using them. That does not seem excessive to me, assuming you checked them immediately. As long as they aren't dragging, I'd say you're good.
Besides, the heat indicates they are working (the function of brakes is to convert kinetic energy to heat). Other than dragging, about the only thing that could get them too hot was if the front brakes weren't working!
:laugh: