Active National Weather Service alert for San Diego, California 92103: Extreme Heat Watch. Extreme Heat Watch issued August 23 at 1:54PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA Until Fri, 8:00 PM PDT.
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San Diego, California 92103 weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for San Diego, California 92103. Always follow local warnings and emergency instructions.

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Weather status

Extreme Heat Watch

Extreme Heat Watch issued August 23 at 1:54PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA Expires Fri, 8:00 PM PDT.

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What’s next

Hourly forecast

San Diego, California 92103

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for San Diego, California 92103. Forecasts and alerts update from NOAA and the National Weather Service.

85°Sunny1% rain
85°Sunny1% rain
85°Sunny1% rain
84°Sunny1% rain
82°Mostly Clear1% rain
78°Mostly Clear1% rain
76°Mostly Clear1% rain
74°Mostly Clear1% rain

Next 24 hours

Rain Timeline

Highest chance 3%

No meaningful precipitation is expected in the official hourly forecast.

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Official NWS outlook

7-Day Forecast

High / low temperatures

Today

! NWS
85°70°

Sunny

Precipitation
3%
Wind
NW 10 mph
Sunrise
6:18 AM
Sunset
7:26 PM

Mon

83°72°

Patchy Fog then Mostly Sunny

Precipitation
3%
Wind
SW 0 to 10 mph
Sunrise
6:19 AM
Sunset
7:25 PM

Tue

84°72°

Patchy Fog then Sunny

Precipitation
1%
Wind
W 5 to 10 mph
Sunrise
6:20 AM
Sunset
7:24 PM

Wed

86°74°

Patchy Fog then Mostly Sunny

Precipitation
1%
Wind
SW 0 to 10 mph
Sunrise
6:20 AM
Sunset
7:23 PM

Thu

88°74°

Mostly Sunny

Precipitation
0%
Wind
SW 0 to 10 mph
Sunrise
6:21 AM
Sunset
7:21 PM

Fri

88°73°

Mostly Sunny

Precipitation
1%
Wind
W 0 to 10 mph
Sunrise
6:22 AM
Sunset
7:20 PM

Sat

88°73°

Mostly Sunny

Precipitation
1%
Wind
W 0 to 10 mph
Sunrise
6:22 AM
Sunset
7:19 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel92°F
Walking is not recommended now

Review the active Extreme Heat Watch before going outside. MyUSA.us will not recommend this activity while an NWS watch, warning, or emergency is active.

WindN3 mph
Best walk timeReview the active Extreme Heat Watch before leaving

MyUSA.us will not recommend an outing window while an NWS watch, warning, or emergency is active. Follow the official alert and local instructions.

Official EPA AirNowLocal air qualitySan Diego, California 92103
View AQI +
More weather details
Wind gusts10mph
Rain now1%next hour
Humidity53%current
UV indexCheckingEPA forecast

Wind impact: Light wind with little expected outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gust10 mph
Pressure29.85 in
Visibility
Peak rain chance3%
Dew point69°F
Active alerts1

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Weather safety ↗

Severe · Future

Extreme Heat Watch

Applies to: San Diego County Coastal Areas; Orange County CoastalIssued by: NWS San Diego CAExtreme Heat Watch issued August 23 at 1:54PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Alert details* WHAT...Dangerously hot conditions with temperatures up to 95 possible. * WHERE...Orange County Coastal Areas and San Diego County Coastal Areas. * WHEN...From Tuesday morning through Friday evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight lows around 5 to 7 degrees above normal will limit relief from the heat, especially for those without adequate cooling.
Safety instructionsDrink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
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