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Official · NWS

Extreme Heat Warning

until 3:00 am

Extreme Heat Warning issued October 2 at 9:13PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA

Full text

* WHAT...Dangerously hot conditions with high temperatures ranging from the mid 80s to lower 90s near the coast to the mid 90s to low 100s for the mesas and other higher coastal terrain expected. Nights will be very warm with low temperatures mostly in the 70s. * WHERE...San Diego County Coastal Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.

San Diego County Coastal Areas

Computed

Heat advisory

Sat

Feels-like high near 35°C.

Computed

Heat advisory

Sun

Feels-like high near 34°C.

Computed

Heat advisory

Mon

Feels-like high near 32°C.

San Diego 10-Day Forecast

California 3:59 am local updated now

Clear sky

74°

Clear sky

Feels like 74°

96° 73° today's high / low

+20.4° vs normal — extraordinarily warm

100

Perfect

Outdoor comfort right now

It is 74°F and clear sky in San Diego. Nothing wet on the radar for the next 24 hours. Temperatures climb about 11°F over the next six hours. Tomorrow: clear sky, high 94°F.

  • Pressure steady slowly 29.80 inHg
  • Wind 5 mph N
  • Humidity 62%
  • Cloud 0%
  • UV peak 8
  • Rain chance 1%

Next 14 days

Pick a day to load its hour-by-hour detail.

14-day forecast for San Diego

Daily highs and lows, precipitation, wind, UV and daylight.

Day Conditions High Low Chance Rain Snow Wind UV Sunrise Sunset
Today Oct 3 Clear sky Clear sky 96° 73° 1% — — 10 mph 8 6:44 am 6:30 pm
Tomorrow Oct 4 Clear sky Clear sky 94° 76° 0% — — 9 mph 8 6:44 am 6:29 pm
Monday Oct 5 Clear sky Clear sky 89° 76° 0% — — 12 mph 8 6:45 am 6:27 pm
Tuesday Oct 6 Clear sky Clear sky 86° 75° 0% — — 12 mph 8 6:46 am 6:26 pm
Wednesday Oct 7 Clear sky Clear sky 84° 74° 1% — — 10 mph 8 6:47 am 6:25 pm
Thursday Oct 8 Clear sky Clear sky 83° 73° 0% — — 10 mph 7 6:47 am 6:24 pm
Friday Oct 9 Partly cloudy Partly cloudy 82° 73° 1% — — 10 mph 7 6:48 am 6:22 pm
Saturday Oct 10 Partly cloudy Partly cloudy 74° 72° 2% — — 9 mph 6 6:49 am 6:21 pm
Sunday Oct 11 Partly cloudy Partly cloudy 73° 72° 10% — — 13 mph 7 6:49 am 6:20 pm
Monday Oct 12 Partly cloudy Partly cloudy 72° 70° 10% — — 13 mph 7 6:50 am 6:19 pm
Tuesday Oct 13 Partly cloudy Partly cloudy 71° 69° 10% — — 10 mph 7 6:51 am 6:17 pm
Wednesday Oct 14 Partly cloudy Partly cloudy 71° 69° 3% — — 10 mph 7 6:52 am 6:16 pm
Thursday Oct 15 Clear sky Clear sky 72° 69° 3% — — 11 mph 7 6:52 am 6:15 pm
Friday Oct 16 Partly cloudy Partly cloudy 73° 70° 3% — — 11 mph 7 6:53 am 6:14 pm

About this San Diego forecast

Updated 2026-10-03 10:59 UTC, and refreshed automatically every few minutes. Forecast data is provided by Visual Crossing; radar frames from RainViewer; the 20-year normals and records from the ERA5 reanalysis archive. No national weather service publishes point alerts here, so only computed watches are shown.

Watches labelled computed are worked out on this site from forecast thresholds and are not official warnings — always defer to your national weather service. Need help reading a number? See the sourced weather guide.

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