Hit left temple very hard; now has tender spot above his right temple. no dizziness, nausea, headaches, but his head hurts to touch.

See MD: Temple is very delicate area of scalp. You mentioned hit VERY HARD. Head injuries should not be taken lightly. A proper evaluation by a MD and he may need a CAT SCAN of brain to make sure that every thing is OK. These kind of injuries may associated with bleed just under the layers of scalp and / or contusion of brain. so these concerns need to be addressed.