A days-long heat wave is expected to peak Sunday across the region, though a persistent high-pressure system will linger into early next week, creating potentially dangerous and unhealthful conditions.
“Strong high pressure aloft will maintain hot weather inland into next week, with periods of high clouds,” according to the National Weather Service. “Breezy west to southwest winds near the passes will keep fire weather conditions elevated.”
Things will be cooler along the coast, thanks to a returning marine layer, but it will still be warmer than usual.
Highs on Sunday are forecast to be 73 to 78 near the coast, 81 to 85 inland, 85 to 90 in the western valleys, 96 to 101 near the foothills, 95 to 105 in the mountains and 115 to 119 in the deserts.
An excessive heat warning will be in place until 11 p.m. Wednesday in the San Diego County deserts. A similar warning will be in place until 8 p.m. Tuesday in the mountains and valleys.
“The peak of the heat is expected this weekend with slight cooling for early next week,” according to the NWS. “High temperatures near 115 degrees could continue through the week.”
“Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the agency advised.
Updated at 7:45 a.m., Sunday, July 16, 2023
City News Service contributed to this article.
