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NWS Issues Extreme Heat Warning for Coachella Valley and Surrounding Areas

September 8, 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 starting Wednesday morning.

An Extreme Heat Warning has been issued by the National Weather Service in San Diego, California. The warning is in effect from September 9 at 10:00 AM PDT until September 11 at 8:00 PM PDT.

Affected regions include the Coachella Valley, San Diego County Deserts, and the San Gorgonio Pass near Banning. High temperatures are expected to reach between 106 and 110 degrees, while low temperatures will remain in the 80s.

These conditions present areas of Major HeatRisk. Very warm overnight temperatures are anticipated, which will limit relief from the daytime heat.

The National Weather Service notes that the risk of heat-related illnesses increases significantly during extreme heat events.

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 +41°, Clear.
That is 6° above the September climate norm.
The record for this date is +44° (2018).
Three-day forecast: 9 September: +42°/+31° · 10 September: +43°/+29° · 11 September: +41°/+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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