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NWS Issues Extreme Heat Warning for Southern California Deserts and Passes

August 25, 2026 · wweather1 editorial · 1 min read

The National Weather Service has issued an Extreme Heat Warning for parts of Southern California, bringing dangerously hot conditions with high temperatures reaching up to 115 degrees.

An Extreme Heat Warning has been issued by the National Weather Service in San Diego, California, beginning August 24 at 10:04 PM PDT and remaining in effect until August 28 at 8:00 PM PDT.

The affected areas include the Coachella Valley, San Diego County Deserts, and the San Gorgonio Pass near Banning. High temperatures ranging from 110 to 115 are expected throughout the duration of the warning.

Additional details indicate that overnight temperatures will remain 5 to 8 degrees above normal, which will limit relief from the heat during the nighttime hours.

Impacts from the event include a significant increase in heat-related illnesses. The hot temperatures may cause heat-related health conditions for individuals in the affected regions.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids
• Stay in an air-conditioned room
• Stay out of the sun
• Check up on relatives and neighbors
📊 The numbers, from wweather1 data
Palm Springs: now +33°, Clear.
That is 7° above the August climate norm.
The record for this date is +44° (2020).
Three-day forecast: 25 August: +46°/+32° · 26 August: +47°/+33° · 27 August: +43°/+36°
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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