San Diego/ Weather & Environment

Scorcher's Last Stand: San Diego Heat Advisory Fades as Weekend Cooldown Rolls In

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Published on August 28, 2026
Scorcher's Last Stand: San Diego Heat Advisory Fades as Weekend Cooldown Rolls InSource: CrispyCream27, CC BY-SA 4.0, via Wikimedia Commons

San Diego is waking up today to clear skies, calm winds, and temperatures around 73 degrees, but the easy morning will give way to a much hotter afternoon. A Heat Advisory remains in effect for coastal San Diego County through 8 PM, with the high expected to reach about 90 degrees. The payoff arrives this weekend, when temperatures begin a steady slide.

Fog Burns Off Before Friday Heat

Patchy fog may develop near the coast before 8 AM, then clear as mostly sunny skies take over. West winds should remain light at 0 to 5 mph, and the chance of rain is just 2%.

The National Weather Service warns that Friday’s heat could cause illness and recommends drinking plenty of fluids, staying in air-conditioned spaces, avoiding direct sun and checking on relatives and neighbors.

Weekend Cooling Finally Arrives

Tomorrow will still be warm, with patchy fog before 11 AM followed by sunshine and a high near 88. Next Sunday cools to about 84, with next Monday topping out near 82 and overnight lows falling from the low 70s into the upper 60s.

The shift is the latest turn in a hot stretch that had San Diego nearing 90 degrees late this week, as Hoodline reported yesterday. For outdoor plans, the weekend should be more manageable once the morning fog clears, though tomorrow afternoon will still call for heat awareness.

Small Rain Chance Appears Next Week

Next Tuesday brings a slight 15% chance of rain showers between 11 AM and 5 PM, with mostly sunny skies and a high near 81. Slight shower chances continue next Tuesday night through next Thursday, while daytime highs stay in the low 80s.

Beachgoers should also watch for a south-southwest swell tomorrow and next Sunday that could produce localized surf of 4 to 6 feet on southwest-facing beaches, especially in northern San Diego County and Orange County. No hazardous marine conditions are expected through next Tuesday.