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Extreme Heat Warning Issued for Los Angeles County Region

September 9, 2026 · wweather1 editorial · 1 min read

The National Weather Service has issued an Extreme Heat Warning for parts of Los Angeles County, effective from 8:00 AM Wednesday until 8:00 PM PDT Thursday. Temperatures are forecast to range between 92 and 108 degrees.

The warning was issued by NWS Los Angeles/Oxnard CA on September 9 at 1:11 AM PDT, following a Heat Advisory in effect through Wednesday morning. High temperatures are expected to peak on Wednesday for most areas, with humid conditions adding to the heat discomfort.

Affected locations include the Malibu Coast, Los Angeles County Beaches, Palos Verdes Hills, and the Los Angeles County Inland Coast, including Downtown Los Angeles. The warning also encompasses the Los Angeles County San Gabriel Valley, Calabasas, Agoura Hills, the Western and Eastern San Fernando Valleys, and both the Western and Eastern Santa Monica Mountains Recreational Areas.

National Weather Service officials note that heat-related illnesses increase significantly during extreme heat events, as prolonged exposure to hot temperatures poses health risks.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids and stay in air-conditioned rooms.
• Stay out of the sun and check on relatives and neighbors.
• Do not leave young children or pets in unattended vehicles.
📊 The numbers, from wweather1 data
Los Angeles: now +24°, Clear.
That is 11° above the September climate norm.
The record for this date is +42° (2024).
Three-day forecast: 9 September: +42°/+23° · 10 September: +37°/+23° · 11 September: +32°/+24°
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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