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San Diego, CA

Weather Forecast Office

NWS Forecast Office San Diego, CA

Weather.gov > San Diego, CA
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Last Map Update: Mon, Aug 18, 2025 at 11:33:02 am PDT

Heat Watch
Highs today
Highs Thursday
Monsoon Returns
An Extreme Heat Watch has been issued for the mountains (excluding the Santa Ana range), deserts, and Inland Empire for Thursday and Friday. Areas of high HeatRisk in the deserts with widespread moderate HeatRisk in the mountains and Inland Empire is forecast. Increasing humidity with the return of monsoon moisture will limit nighttime cooling, particularly in the low deserts.
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Warming trend continues today with highs around 3-5 degrees below normal.
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Heat peaks on Thursday and Friday with highs around 3-7 degrees above normal inland.
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Monsoon moisture will return later this week. The first chance of showers and thunderstorms will be over the mountains and high desert on Thursday.
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