Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued September 8 at 3:44AM PDT until September 9

Affecting Orange County Inland

In effect until: Sep 8, 2026, 11:30 PM

Orange County Inland

Likely impact; effects through 11:30 PM.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

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Read the original bulletin (official text)

* WHAT...For the Extreme Heat Warning, dangerously hot conditions
with high temperatures in the 90s with low temperatures in the 70s
expected. For the Heat Advisory, high temperatures in the upper 80s
to mid 90s expected.

* WHERE...Orange County Inland Areas.

* WHEN...For the Extreme Heat Warning, until 8 PM PDT Wednesday. For
the Heat Advisory, from 8 PM Wednesday to 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.overnight

* ADDITIONAL DETAILS...Major HeatRisk. Warm overnight temperatures
will limit relief from the heat.

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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™

Extreme Heat Warning issued September 8 at 3:44AM PDT until September 9

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