Fire officials expect to have the so-called Buck Fire that has charred some 2,700 acres near Temecula fully contained by Saturday, officials said on Friday.
The fire broke out on Tuesday just before 1 p.m. at Sage Road, between Lewis Valley and Buck roads in Aguanga.
The fire, sparked by lightning, injured six people, including three firefighters, and destroyed four structures, including one home. The fire also prompted evacuations and road closures.
More than 1,000 firefighters from several agencies were working to put out the blaze.
A storm packing 60-mile-per-hour winds, rain and hail moved through the area around 2 p.m. Thursday.
Residents whose properties had been threatened by the flames began returning to their homes Wednesday evening after authorities lifted evacuation orders.
At one point, officials said about 140 residences were in the path of the flames.