Mild Santa Ana winds will bring warmer temperatures later in the week, although desert areas will continue to be pretty cold at night.
Freeze warnings remained in effect for parts of Los Angeles and San Bernardino counties, and local ski resort areas were taking advantage of weekend snow and preparing to open.
Temperatures were in the mid-40s in Newport Beach and Corona areas early Monday. Eagle Rock reported a reading of 49 degrees.
"It's a cold one outside this morning," said NBC4 forecaster Carl Bell.
Freeze warnings were in effect until 9 a.m. for Lancaster and Apple Valley. A frost advisory was in effect Monday morning in the Oxnard area.
Wind advisories were in effect for much of San Bernardino County, the Santa Clarita area and most mountain regions.
Winds of up to about 20 miles per hour are expected to warm much of the region over the next few days, but chilly weather and some rain will return by Thursday.