Inland San Diego County was expected to experience the hottest weather of the season Friday through Monday, while sea breezes and marine clouds keeping coastal areas relatively cool, the National Weather Service said.
A heat advisory was issued from 11 a.m. Saturday to 8 p.m. Monday for San Diego County mountains along with an excessive heat warning for the deserts. Temperatures were predicted to reach the low 100s in the mountains and close to 120 in the deserts by Sunday.
Highs Friday were forecast to be 71 to 75 near the coast, 78 inland, 80 to 84 in the western valleys, 93 to 98 near the foothills, 91 to 100 in the mountains and 110 to 113 in the deserts.
Gradual cooling could begin as early as the July Fourth holiday.
“Most inland areas should experience noticeable cooling for the latter half of next week,” the weather service said.
Patchy fog was possible over the coastal waters Friday night into mid-morning Saturday through Tuesday.
Gusty westerly winds, low relative humidity and heat could elevate wildfire potential late each day through the passes and into the deserts.
