Extremely hot weather will continue in the deserts as the region's record-breaking heat wave goes into a fifth day, but more seasonal temperatures are expected elsewhere in San Diego County.
A National Weather Service excessive heat warning for the deserts will expire at 8 p.m. A similar notice for the mountains has been canceled because predicted high temperatures had fallen below the 100-degree threshold.
In the forecast for Wednesday were highs of 71 to 76 degrees at the beaches, 79 to 84 degrees in inland coastal areas, 82 to 87 degrees in the western valleys, 88 to 93 degrees near the foothills, 87 to 95 degrees in the mountains and 107 to 112 degrees in the deserts. Lows Wednesday night are expected to fall into the 60s in the valleys and along the coast, the high 50s to 60s in the mountains and the high 70s to mid-80s in the deserts.
Although the extreme heat is expected to subside, forecasters said "very warm" weather and above-average temperatures would continue through Saturday. Another round of hot weather is expected Sunday into early next week.
Forecasters advised the public to avoid potentially serious heat-related ailments by staying well-hydrated, avoiding unnecessary outdoor labor and checking on neighbors and relatives — especially those with health conditions and who lack air conditioning.
Authorities also warned against leaving children or pets in parked cars, which can quickly become death traps in high heat.
