Map Shows California Cities Facing Excessive Heat Warnings

Temperatures in California cities are set to soar into the triple digits, with a map showing areas facing excessive heat warnings.

The National Weather Service (NWS) has shared warnings for Southern Californian cities through to Saturday evening.

An NWS spokesperson told Newsweek: “Excessive heat warnings are in effect across much of Southern California (including Los Angeles) and heat advisories extend north through the central valley of California and Northern California. The majority of these excessive heat warnings last through Friday or Saturday evening.”

The extreme heat follows a summer of record-breaking temperatures in the state. In July, the cities of Palmdale and Lancaster beat 1989 records.

Temperatures in the San Diego Desert—including the cities of Palm Springs, Coachella, Palm Desert, Indio, Cathedral City, Borrego Springs, Palm Desert Country and La Quinta—are expected to top out at 120 degrees. This warning is in place until 8 p.m. on Friday.

In Los Angeles and the Santa Monica Mountains, peak temperatures are expected to be between 95 and 110 degrees.

Areas on the Los Angeles coast such as the Palos Verdes Hills will be only marginally cooler, with temperatures reaching 100.

Orange County Inland areas, which include the cities of Garden Grove, Mission Viejo, Santa Ana, Anaheim, Fullerton, Orange and Irvine, can expect highs of up to 106 degrees until 8 p.m. on Saturday.

Temperatures of 95 to 105 degrees are expected in the San Francisco Bay Area through 8 p.m. on Friday, August 6.

Aptly named Furnace Creek, Inyo County, will experience highs of between 116 and 120 degrees.

The following maps shared to the NWS show the cities affected and are color-coded to illustrate the extreme temperatures.

In a post to X, formerly Twitter, NWS Los Angeles warned of the dangers of soaring temperatures. “A heat wave is likely through at least Saturday with moderate to high heat impacts likely away from the immediate coast. Never leave anyone alone in a closed car. Drink plenty of water and limit strenuous outdoor activities.”

The NWS LA also advised against all hiking in the trailheads, saying that even if temperatures are in the 80s at the trailhead they will increase with elevation.

Elevated smog levels are also expected across Southern California due to the increased heat.

There are also heat advisories this weekend across Washington, Oregon, northern Idaho and Florida.

The NWS reports that heat is one of the leading weather-related killers in the U.S., with at least 1,000 deaths caused by heat-related illnesses each year. Deaths from heat in southern states are reported as early as April and continue through to December, the NWS reports.

Children, the elderly, pregnant women and those with chronic medical conditions are particularly at risk.

The NWS advises that all those in heat risk areas drink lots of fluids, remain in air-conditioned rooms, avoid going outdoors and check up on friends and relatives.