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Heat Warning Extended Through Friday Evening for Los Angeles County

The National Weather Service has pushed back the end of the extreme heat warning to 8 p.m. Friday, August 28, extending the period of dangerous heat across Los Angeles and Orange counties.

4 reports on this incident · first at Aug 27, 2026, 9:46 a.m. ET

By AI ReporterFirst reported Aug 27, 2026, 9:25 a.m. ETWritten Aug 27, 2026, 10:15 a.m. ET
Developing · checked 1h ago

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

We last searched for new coverage of this at Aug 27, 2026, 10:07 a.m. ET — checked 1h ago.

The has extended its extreme heat for much of Los Angeles County, with the advisory now in effect until 8 p.m. Friday, August 28, according to mynewsla.com. The , which began Thursday, August 27, now runs longer than initially issued. The covers a broad area including the Santa Ana Mountains and foothills, inland areas such as Santa Ana, Garden Grove, Anaheim, Fullerton and Irvine, Orange County coastal areas, the San Gabriel Mountains, the Golden State (5) and Antelope Valley (14) freeway corridors, and south-facing beaches of Los Angeles County. Cities affected include Lancaster, Palmdale, Claremont, Van Nuys, downtown Los Angeles and Los Angeles. Temperatures will remain well above normal, with highs potentially reaching 112 degrees in some of the hottest valleys and mountain areas, mynewsla.com reported. Scattered showers or even a thunderstorm are possible Thursday and Friday due to increasing tropical moisture, according to the same report. The has also issued a heat advisory, red flag and beach hazards statement for the region.

Earlier reports

  1. Aug 27, 2026, 9:53 a.m. ET

    Extreme Heat Warning in Effect Through Friday for Los Angeles County

    An Extreme Heat Warning remains in effect through 8 p.m. Friday, August 28, across much of Los Angeles County, according to the National Weather Service. The warning, reported by mynewsla.com, covers the Santa Ana Mountains and foothills, inland areas including Santa Ana, Garden Grove, Anaheim, Fullerton and Irvine, Orange County coastal areas, the San Gabriel Mountains, the Golden State (5) and Antelope Valley (14) freeway corridors, and south-facing beaches of Los Angeles County.

    Temperatures will remain well above normal, with highs potentially reaching 112 degrees in some of the hottest valleys and mountain areas, mynewsla.com reported. The warning is in effect until 8 p.m. Friday, August 28.

  2. Aug 27, 2026, 9:50 a.m. ET

    Extreme Heat Warning Through Friday Could Bring 112-Degree Highs

    The National Weather Service says extreme heat warnings remain in effect through 8 p.m. Friday, Aug. 28, across much of Los Angeles County, with temperatures potentially reaching 112 degrees in some of the hottest valleys and mountain areas.

    The warning covers the Santa Ana Mountains and foothills, inland areas including Santa Ana, Garden Grove, Anaheim, Fullerton and Irvine, Orange County coastal areas, the San Gabriel Mountains, the Golden State (5) and Antelope Valley (14) freeway corridors, and south-facing beaches of Los Angeles County. Cities affected include Lancaster, Palmdale, Claremont, Van Nuys and downtown Los Angeles.

    Temperatures will remain well above normal, according to the National Weather Service.

  3. Aug 27, 2026, 9:46 a.m. ETFirst report

    Extreme Heat Warning Extended Through Friday for Los Angeles County

    An Extreme Heat Warning remains in effect through 8 p.m. Friday, August 28, across much of Los Angeles County, according to the National Weather Service. The warning covers the Santa Ana Mountains and foothills, inland areas including Santa Ana, Garden Grove, Anaheim, Fullerton and Irvine, Orange County coastal areas, the San Gabriel Mountains, the Golden State (5) and Antelope Valley (14) freeway corridors, and south-facing beaches of Los Angeles County, as reported by mynewsla.com.

    Temperatures will remain well above normal, with highs potentially reaching 112 degrees in some of the hottest valleys and mountain areas, according to mynewsla.com. The warning is in effect for cities including Santa Ana, Garden Grove, Anaheim, Fullerton, Irvine, Lancaster, Palmdale, Claremont, Van Nuys, and downtown Los Angeles.

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Revision history

  1. Version 127 Aug 2026, 14:15current

    First published.

  2. Version 127 Aug 2026, 13:50current

    First published.

  3. Version 127 Aug 2026, 13:46current

    First published.

  4. Version 127 Aug 2026, 13:53current

    First published.

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