The County Fire, which has consumed more than 88,000 acres in rural Yolo County, was 48 percent contained as of Saturday morning, Cal Fire officials said.
Crews were making progress, despite steep and inaccessible terrain that has made fighting the blaze difficult. Higher temperatures, low humidity and winds are expected to increase fire activity today.
The fire, which started Sunday, has burned 88,375 acres and full containment is expected by Thursday, July 12, according to Cal Fire.
No injuries have been reported in the blaze, but 10 structures have been destroyed and another 110 remain threatened.
1 Person Dies in Wildfire Near California-Oregon Border
Mandatory evacuations remain in effect tonight for residents west of state Highway 16 to Berryessa-Knoxville Road, south of Old County Road 40 and north of County Road 53; and west of Highway 16 to the Yolo/Lake county line, north of Road 40 and south of the Yolo County line.
Berryessa Knoxville Road remains closed from the Pope Creek Bridge to the Napa/Lake county line, as does state Highway 16 between state Highway 20 and Rumsey Hall.