Cooler temperatures and humidity are helping firefighters fight the fire, which nearly doubled in size since Monday afternoon.

Riverside County firefighters continue to battle a quickly growing brush fire burning in the hills near Banning. It was first reported at around 3 p.m. on Sunday in the area of the Wolfskill Truck Trail, located near Old Banning Idyllwild Road, according to Riverside County Fire Department crews.

BANNING, Calif. - A massive fire broke out in Riverside County, forcing evacuations for parts of the area. The "Wolf Fire" broke out near Banning, California, close to the intersection of Old Banning Idyllwild Road and Wolfskill Truck Trail a little after 3 p.m. on Sunday, June 29.