All schools in the Hesperia, Apple Valley and Oro Grande unified districts were closed Wednesday due to the Pilot Fire's effect on air quality, but containment is now at 64 percent, according to the U.S. Forest Service.
The fire is now at 7,861 acres, with close to 1,500 firefighters battling it.
Apple Valley schools had already been closed Tuesday because of the poor air quality and they had previously planned to reopen Wednesday. Hesperia Unified noted that it was closing Tuesday as a precaution as the fire shifted north.
The fire had gained federal attention on Tuesday:
This story has been updated.