Record Highs Reported In Parts Of San Diego County Amid Fall Heat Wave

SAN DIEGO, CA — Record high temperatures were reported Tuesday in parts of San Diego County amid a fall heat wave that is expected to linger in the region.

It was 93 degrees Tuesday in Palomar Mountain, breaking the record of 89 degrees set in 2020, according to the National Weather Service. It was 94 degrees in Lake Cuyamaca, breaking the record of 89 degrees set in 2020.

The record was also shattered in Campo, where it was 105 degrees compared to 101 degrees in 2020. It was 111 degrees in Borrego, which tied the record for the day of 111 degrees set in 1991.

An excessive heat warning remains in effect until 8 p.m. Thursday for the county's deserts and inland valleys, according to the NWS.

Dangerously hot conditions are expected with temperatures from 108 to 115 degrees in the deserts, forecasters said. High temperatures are expected in the upper 90s to 106 degrees in the valleys.

"Hot conditions with well above average temperatures are expected into early next week for inland areas," NWS San Diego forecasters wrote Wednesday. "A shallow marine layer will help moderate temperatures closer to the coast."

Extreme heat will significantly increase the potential for heat-related illness, according to the NWS. People should drink plenty of fluids, stay in air-conditioned rooms, stay out of the sun, and check on relatives and neighbors. Young children and pets should never be left unattended in vehicles under any circumstances.