San Diego is waking Saturday to clear skies, temperatures around 73 degrees and a forecast that is about to get dramatically hotter: the city is headed for a high near 99. An Extreme Heat Warning covers the county’s coastal areas through Thursday evening, with unusually warm nights making this more than a one-afternoon scorcher.
Saturday And Sunday Bring The Peak Heat
Saturday will stay sunny with no rain expected as temperatures climb through the 90s during the afternoon. Northeast winds should remain light at up to 10 mph, though stronger offshore gusts are possible in inland valleys, foothills and higher terrain.
The National Weather Service says the warning remains in effect until 8 p.m. Thursday, October 8, because heat-related illness risks rise significantly during extreme heat. San Diego should drop only to about 78 degrees Saturday night before Sunday brings another sunny day with a high near 98.
That means outdoor plans may feel hot well after sunset, especially with little wind and no meaningful cooling overnight. The warning follows the broader heat setup outlined in Friday’s Hoodline report, but the weekend is now arriving as the forecast’s hottest stretch.
Relief Arrives Slowly Next Week
Monday will remain sunny and hot with a high near 96, followed by a gradual cooldown to 91 Tuesday and around 90 Wednesday and Thursday. Friday looks more manageable at about 88 degrees, while overnight lows ease from the mid-70s into the low 70s.
Forecasters expect the offshore flow to weaken Monday, which could bring minor relief near the immediate coast by Tuesday. Inland valleys and higher coastal terrain are likely to stay much hotter, and the marine layer is not expected to return in a meaningful way until around Wednesday night or Thursday morning.
Heat Safety Remains The Priority
The weather service advises residents to drink plenty of fluids, stay in air conditioning when possible, avoid prolonged sun exposure and check on relatives and neighbors. Children and pets should never be left in unattended vehicles, where temperatures can become deadly within minutes.
