Update: Ontario Fire in San Bernardino County – Dec. 16 status

Published Dec 16, 2025 #Ontario fire

Updated: 11:33 a.m. Dec. 16

First discovered: More than a month ago, 10:18 a.m. Nov. 5

Initial location: San Bernardino County, Calif.

Fire type: Wildfire

Fire name: Ontario

Ontario Fire initially started 10:18 a.m. Nov. 5 in San Bernardino County, California.

It has been burning on federal land managed by the United States Forest Service for more than a month. At this time, the containment status is unknown and the cause of the fire remains undetermined.

Source: National Interagency Fire Center