National Weather Service United States Department of Commerce

San Diego, CA

Weather Forecast Office

NWS Forecast Office San Diego, CA

Weather.gov > San Diego, CA
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Last Map Update: Tue, Aug 18, 2026 at 12:36:51 pm PDT

High Temperatures Wednesday
High Temperatures Thursday
HeatRisk Thursday
Highs Temperatures Friday
High temperatures rise to around 3 to 7 degrees above normal by Wednesday with widespread Moderate HeatRisk inland.
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Gradual warming trend this week brings high temperatures to 5-10 degrees above typical late summertime averages on Thursday.
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Above normal high and low temperatures bring a return of minor to moderate HeatRisk for inland areas for the mid to late week. Local areas of major HeatRisk in the low deserts.
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High temperatures won't change much for Friday from Thursday's highs. Temperatures will slowly cool over the weekend into early next week.
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