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Extreme Heat Warning Issued for Portions of Southern California

August 29, 2026 · wweather1 editorial · 1 min read

The National Weather Service in San Diego, California, has issued an Extreme Heat Warning in effect until 8:00 PM PDT on Saturday. High temperatures are forecast to reach up to 111 degrees.

The alert was issued by NWS San Diego on August 28 at 9:06 PM PDT and remains in effect until 8:00 PM PDT on Saturday. The warning covers the Coachella Valley, San Diego County Deserts, and the San Gorgonio Pass near Banning.

Hot conditions will continue into Saturday, with daytime highs reaching up to 111 degrees. Overnight lows will remain warm, ranging from the upper 80s to low 90s. The weather service warns that the risk of heat-related illnesses increases significantly during these extreme conditions.

Temperatures are expected to moderate shortly after the event. According to the National Weather Service, temperatures will fall to below normal by Sunday.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids and stay out of the sun.
• Stay in air-conditioned rooms and check up on relatives and neighbors.
• Do not leave young children and pets in unattended vehicles.
📊 The numbers, from wweather1 data
Palm Springs: now +35°, Clear.
That is 7° above the August climate norm.
The record for this date is +46° (2023).
Three-day forecast: 29 August: +45°/+29° · 30 August: +41°/+29° · 31 August: +38°/+29°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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