BIG BEAR (CBSLA.com) — The search for accused triple murder suspect Christopher Dorner entered its fifth day Monday despite a fresh layer of snow and single-digit temperatures in the San Bernardino Mountains.

COMPLETE COVERAGE: SoCal Manhunt

A scaled back search effort resumed at daybreak Monday, officials said.

Area schools are also scheduled to resume classes.

“All Bear Valley Unified schools will be open . . . with additional security measures and additional law enforcement present,” the district said in an online statement.

On Sunday, one helicopter and a team of 25 deputies from the San Bernardino County Sheriff’s Department patrolled the area with no sign of Dorner.

Authorities have searched hundreds of residences, cabins, and rental properties since Thursday when Dorner’s burned out truck was discovered off a service road near Bear Mountain.

“We have a gun ready. We hopefully never have to use it, but it’s there,” Big Bear resident Anita Weber said.

Dorner is accused of killing a Riverside police officer as well as an engaged couple in Irvine last week.

A $1 million reward was offered Sunday by several agencies and private groups for his capture.