It could take weeks or months for the public to know what caused the fire that last month charred 6,600 acres in the Otay Mountain Wilderness as local Cal Fire officials continue their investigation.

A new wildfire was reported today at 1:58 p.m. in San Diego County. The wildfire has been burning on private land. At this time, the containment status is unknown and the cause of the fire remains undetermined.

The latest forecasts have the rain arriving Wednesday and lingering off and on through Friday, before skies clear up next Saturday.