About 78,000 Southern California Edison customers remained without electricity in the San Gabriel Valley Thursday, down from a peak of 226,00 customers Thursday afternoon, SCE officials said.
SCE officials have said they expect 99 percent power restoration Sunday evening.
Utility officials advised residents to be wary and even stay indoors when possible Saturday as power lines are re-energized. Damaged lines may spark or ignite fires as electricity is restored to them.
Communities of particular concern Saturday included La Crecenta, La Canada Flintridge, Altadena, Sierra Madre, Arcadia, Duarte, Monrovia, Glendora, San Dimas and La Verne.