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Extreme Heat Watch Issued for Los Angeles County Areas

July 12, 2026 · wweather1 editorial · 2 min read

The National Weather Service (NWS) Los Angeles/Oxnard, CA, has issued an Extreme Heat Watch for several areas within Los Angeles County. This watch, in effect from Tuesday morning through Wednesday evening, July 16, anticipates dangerously hot conditions.

An Extreme Heat Watch was issued on July 12 at 1:46 AM PDT by the NWS Los Angeles/Oxnard, CA. This alert covers the Santa Clarita Valley, Los Angeles County Inland Coast including Downtown Los Angeles, Western San Fernando Valley, Eastern San Fernando Valley, Santa Susana Mountains, and Los Angeles County San Gabriel Valley. The watch is scheduled to remain in effect until July 16 at 8:00 PM PDT.

Prior to the Extreme Heat Watch, a Heat Advisory is active from July 14, 10 AM PDT, to July 15, 10 AM PDT. During this advisory period, temperatures are expected to range from 85 to 98 degrees. Following the advisory, the Extreme Heat Watch forecasts dangerously hot conditions with possible temperatures of 90 to 108 degrees, with the warmest temperatures expected in the valleys.

These conditions pose a high risk for dangerous heat illness for anyone, especially the very young, the very old, individuals without air conditioning, and those active outdoors.

Additional details indicate that monsoonal moisture will add to the discomfort level from the heat starting on Sunday and continuing through the week.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of fluids.
• Stay in an air-conditioned room and stay out of the sun.
• Do not leave young children and pets in unattended vehicles.
• Monitor the latest forecasts and warnings for updates.
📊 The numbers, from wweather1 data
Los Angeles: now +28°, Overcast.
That is 1° below the July climate norm.
The record for this date is +40° (1983).
Three-day forecast: 12 July: +30°/+19° · 13 July: +30°/+18° · 14 July: +32°/+19°
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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