Severe · Extreme Heat WarningActive alert
Extreme Heat Warning issued October 3 at 6:05PM PDT until October 8
Affecting Orange County Inland
In effect until: Oct 4, 2026, 9:15 AM
Orange County Inland
Likely impact; effects through 9:15 AM.
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Read the original bulletin (official text)
* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105 and warm nights with low temperatures in the 70s expected. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™