Extreme Heat Warning Issued for San Diego County Mountains

San Diego, CA, August 24, 2026 —

An extreme heat warning has been issued for the San Diego County Mountains, with the warning set to remain in effect from Tuesday through Friday.

Residents and visitors in the mountainous regions of San Diego County are advised to prepare for dangerously hot conditions. The National Weather Service typically issues such warnings when heat poses a significant threat to public health and safety, especially for vulnerable populations. Prolonged exposure to extreme heat can lead to heat exhaustion, heat stroke, and other serious heat-related illnesses.

Authorities are recommending that individuals take precautions to stay safe during this period of intense heat. These recommendations often include staying hydrated by drinking plenty of fluids, seeking air-conditioned environments, avoiding strenuous outdoor activities during the hottest parts of the day, and checking on elderly neighbors and relatives.

The specific temperature forecasts and the exact areas covered by the warning were not detailed in the provided summary. However, the designation of an

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