UPDATE: Search and rescue teams have found the boy and they're in the process of hiking with him back to the Horsetail Falls trail head.

The 16-year-old boy was hiling with family Saturday afternoon when he became separated.

He was wearing a jacket with hood, blue sweat pants and hiking boots. He did not have emergency items with him.

Temperatures dropped into the 20s overnight.

An Oregon Army National Guard helicopter with a FLIR night vision camera searched overnight, but wasn't able to find the boy.