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Extreme Heat Warning Issued for Coachella Valley and Surrounding Areas

September 8, 2026 · wweather1 editorial · 1 min read

The National Weather Service in San Diego has issued an Extreme Heat Warning for parts of Southern California, bringing dangerously hot conditions expected to last through Friday evening.

An Extreme Heat Warning has been issued, beginning at 10:00 AM on Wednesday and remaining in effect until 8:00 PM PDT on Friday. The advisory was officially issued on September 8 at 6:52 AM PDT.

The affected areas include the Coachella Valley, San Diego County Deserts, and the San Gorgonio Pass near Banning. Residents in these regions should prepare for major HeatRisk levels.

High temperatures are expected to reach between 106 and 110 degrees, while low temperatures will remain in the 80s. These very warm overnight temperatures will limit relief from the heat.

Heat-related illnesses are known to increase significantly during extreme heat events. The combination of high daytime temperatures and warm nights heightens the overall health risk for individuals in the impacted zones.

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 +36°, Clear.
That is 6° above the September climate norm.
The record for this date is +44° (2018).
Three-day forecast: 8 September: +42°/+27° · 9 September: +41°/+28° · 10 September: +42°/+33°
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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