Children cool off at Waterfront Park
Children cool off at Waterfront Park in downtown San Diego. Photo by Chris Stone.

High temperatures will keep Southern California baking all week long and into next weekend, prompting the National Weather Service Sunday to issue a heat advisory for the region.

“Days will be slightly hotter and nights a little warmer, with the resulting heat risk sufficient for a heat advisory for Monday through Wednesday,” the NWS said.

The advisory runs until 8 p.m. Wednesday, but could be extended as the current forecast calls for high heat through next Sunday in several areas.

The San Diego County deserts are expected to see highs near 110 degrees through next weekend, with highs in the low 90s in the valley areas.

“Drink plenty of fluids, stay in an air-conditioned room and stay out of the sun,” the weather service stated.

Warming will begin Monday as high pressure builds, the agency said. By midweek it may be quite hot inland and warmer over coastal areas, despite the sea breezes.

Highs on Monday were forecast to be in the mid 70s near the coast, around 80 inland, in the lower 80s in the western valleys, around 90 in the mountains and 103 to 108 in the deserts.

A weak monsoon could return after midweek, but the chance of this bringing any precipitation was low.

No hazardous marine weather was expected through Thursday.

Updated at 7:15 a.m., Monday, Aug. 29, 2022

City News Service contributed to this article.