Yes, FOREHEAD is a Scrabble word!

Letter values in Scrabble US: F 4, O 1, R 1, E 1, H 4, E 1, A 1, D 2.

Is it a valid word?

FOREHEAD is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

the part of the face above the eyes
the large cranial bone forming the front part of the cranium: includes the upper part of the orbits

Also: frontal bone, os frontale.