The fire was reported at 4:56 p.m. in the area of De Portola Road and Palm Street just south of Hemet. Twelve engines, five fire crews, four air tankers and a helicopter responded to the scene.
The fire was fully contained as of 7:30 p.m. and reached 50 acres. Firefighters will remain at the scene overnight. Full control of the fire is expected by 2 p.m. Sunday.
No injuries or threats to structures were reported.