Last updated 7/15/2017 at 11:16am
Officials are urging residents to take shelter in "cool zones''.
While temperatures remained relatively pleasant along the coast and at the beaches, Friday saw Borrego Springs, Campo and Ramona all set new record highs for July 7, surpassing previous record highs for the date that were set in 1976. The thermometer read 120 in Borrego Springs, 108 in Campo and 102 in Ramona.
More of the same is expected.