Extreme Heat Watch

Locations Affected

Anaheim, CA ∙ Irvine, CA ∙ Santa Ana, CA ∙ San Bernardino, CA ∙ Riverside, CA ∙ Chula Vista, CA ∙ San Diego, CA ∙ Orange, CA ∙ Corona, CA ∙ Garden Grove, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 1200 PM PDT Sun Jul 12 2026 ...EXTREME HEAT WATCH IN EFFECT FROM TUESDAY MORNING THROUGH THURSDAY EVENING... * WHAT...Hot and humid conditions with elevated overnight temperatures. High temperatures will range from the 90s in the mountains below 6,000 feet, 95 to 105 or more for inland valleys, and 80s for areas near the coast. * WHERE...Orange County Coastal Areas, Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Mountains, San Diego County Valleys, San Gorgonio Pass near Banning, and Santa Ana Mountains and Foothills. * WHEN...From Tuesday morning through Thursday evening, hottest on Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Limit outdoor recreation during the daytime hours.

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