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Your forecast, explained.

San Diego, CA

Friday, October 9

81° — Sunny

Alerts · National Weather Service

Tropical Storm Rachel
Tropical Storm Rachel Will Bring Coastal Flooding, Wind, and Rain
Tropical Storm Watchuntil further notice
Flood Watchuntil Sun 8 PM
Coastal Flood Advisoryuntil Tue 2 PM
Beach Hazards Statementuntil Fri 11 PM

Changed since yesterday

Tuesday rain 34%→18%

Next five days

FriSatSunMonTue
High86°81°74°69°71°
Low70°70°64°62°61°
Precip2%70%70%54%18%
Alerts

Highs tinted vs today's normal (75°): 8° below 8° above

The receipt

What Wednesday's 82 runs said for Thursday · what the gauge read
PNG ↓
HIGH (°F)gauge 83°8090.5100.9RAIN TOTAL (IN)not in that day's tapePEAK GUST (MPH)not in that day's tape

dots = 82 runs from Wednesday, colored by amount  ·  median  ·  middle 80%  ·  what the gauge read Thursday

Wednesday's call for Thursday: a high of 91°. The gauge read 83°, 0 in, 19 mph. Every forecast here is kept, so every day gets a receipt.

The scorecard · this week

M
T
W
T
F
S
S

1 of 2 days inside the band · bands ±4.3°F · gauge SAN

Worth knowing today

Under a Coastal Flood Advisory that runs through Tuesday afternoon, San Diego's weekend hinges on where Rachel's remnants come ashore: about half the outcomes bring a soaking 0.25 to 1 inch to the coast, while a landfall more than 100 miles south could hold totals under a quarter inch.
rachel · rain · coastal flood
Sunday is the windy day in San Diego if Rachel's low makes the close approach, with gusts of 20 to 40 mph through the coastal basin and 50 to 70 mph in the mountains and passes.
wind · rachel
Monday should top out near 70 in San Diego as the trough axis swings overhead, likely the coolest air some areas have felt since April, and a few degrees cooler still if the upper low parks over Southern California.
cooldown
Forecast high temperature (°F) · next 7 days · a blend of models
PNG ↓
60°80°100°FriSatSunMonTueWedThu

82 model runs, colored by temperature  ·  middle of the pack  ·  official forecast

Next Thursday's high in San Diego splits anywhere from 72 to 95, hinging on how fast warmth rebounds once the trough clears out.
spread · rebound

Written 2026-10-09 · grounded in station records · tomorrow morning: what today's forecast said, next to what happened.

How much rain, and when

Rainfall, running total (inches) · next 3 days · a blend of models
PNG ↓
1 in2 in0123Sat 12 AMSat 12 PMSun 12 AMSun 12 PMMon 12 AMMon 12 PMINCHES

median run, running total  ·  middle 80% of 82 runs  ·  threads = individual runs  ·  dashed = reference amounts

The median run puts down 0.8 in by the end of the window; the middle 80% of runs land between 0.2 and 1.4, and the wettest reaches 3. Most of it falls Sat 8 PM to Mon 12 AM.

When the wind arrives

Wind gusts (mph) · next 3 days, hourly · a blend of models
PNG ↓
39 mph · tropical storm force58 mph · damaging74 mph · hurricane force020406080Sat 12 AMSat 12 PMSun 12 AMSun 12 PMMon 12 AMMon 12 PMMPH

median gust  ·  middle 80% of 82 runs  ·  threads = individual runs  ·  dashed = named wind thresholds

Median gusts peak around Sunday 6 AM near 25 mph; the strongest of the 82 runs reaches 77 mph.

Today in station history (7 stats, records back decades)
StatValueYear(s)
record high for day 99 1994, 2015
record low for day 51.1 1961
average high for day 74.9 —
average low for day 61.7 —
warmest low for day 71.1 1983
coldest high for day 66 2001, 2013
largest temp swing for day 36.9 1994

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