“Get Ready for the Coldest Night Yet: Freeze Warnings and Frost Advisories in Southern California”


Bundle up, Southern California! The National Weather Service has issued Freeze Warnings and Frost Advisories for many areas of the region, bringing with it bitterly cold temperatures for Tuesday morning.

Coldest Night of the Season

According to the Weather Service, tonight may be the coldest night of the season so far in many locations. With clear skies, light winds, and a very dry and cold airmass in place, temperatures are expected to drop significantly.

Freeze Warning

A Freeze Warning will be in effect from 1 a.m. until 10 a.m. Tuesday for several areas, including most of Los Angeles’ San Fernando Valley, Calabasas, Agoura Hills, the Santa Clarita Valley, and northern Ventura County. Temperatures in these areas could drop into the 20s. The warning also extends farther north into Santa Barbara and San Luis Obispo counties.

Inland Empire Freeze

The Inland Empire will also experience freezing temperatures, with a Freeze Warning covering much of the area. This warning includes the Cajon Pass south to Temecula, as well as Ontario, Riverside, Corona, San Bernardino, and Menifee.

Frost Advisories

For those in the Coachella Valley, the San Gorgonio Pass, and San Diego County’s inland valleys, Frost Advisories are in effect. These areas will experience frosty conditions during the overnight hours.

low temps tuesday
Forecasted morning low temperatures for Tuesday, Jan. 9, 2024. (NWS)

Protect Your Plants

The Weather Service advises farmers and homeowners to take precautions and protect their plants from the cold temperatures. These chilly conditions will persist throughout the weekend.

Below-Average Temperatures

Expect below-average temperatures through Sunday before returning to normal or slightly above normal by Monday, according to KTLA 5 weather anchor Kacey Montoya. Daytime highs will generally be in the low to mid-60s across the Southland this week.

Gusty Winds

In addition to the cold air mass, gusty winds will also be present. The Malibu coast and western Santa Monica Mountains may experience gusts of 60 to 70 miles per hour mid-week.

So, stay warm, stay safe, and don’t forget to bundle up before heading out! Winter has truly arrived in Southern California.