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Potrero, California

Community in San Diego County, California

Air quality

The air at Potrero

Index 59, moderate, led by coarse particles. Read at 9 PM from its reporting area, Border Area (CA), 21 miles off.

59Moderate
  • Fine particles (PM2.5)47Good18.2 mi
  • Ozone39Good48 ppb18.2 mi
  • Coarse particles (PM10)59Moderate18.2 mi

The days ahead

Highest 77, moderate, today, led by fine particles. Yesterday measured 61, moderate.

Smoke, the next 44 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 33 or under.

FriSat

Precipitation

What has fallen at Potrero

None in the last 3 days, to Thu 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Potrero, the next 44 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Potrero, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Potrero, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.

measured now3 instruments

PotreroPOTC1

At a river or reservoir gauge/1.0 mi away/2,375 ft/26 ft above here

temp, wind, gust, humidity, pressure

Rank828of 4,465

measured daily2 instruments

CampoCPMC1

At a cooperative observer's station/7.7 mi away/2,613 ft/264 ft above here

snowfall, snow depth, precip, high, low

Rank114of 4,465

Station report

The weather at San Diego/Brown Fld, drawn

The nearest airport reporting now, 22.3 mi from Potrero, California. From its report of Oct 15, 2026, 8:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over San Diego/Brown Fld, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SDMFIG. A THE SKY OVER SAN DIEGO/BROWN FLDSECTION, HEIGHT ABOVE THE STATION TO SCALE, EACH LAYER AT THE HEIGHT OF ITS BASE AS REPORTED; COVER IN EIGHTHS OF THE SKY; TOPS NOT MEASUREDFT ABOVE THE STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESan Diego/Brown Fld, the skySTATION REPORT · ASOS SDMTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SDM-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

73.0 F with a dew point of 41.0 F, 31 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 7,300 ft up.

Chart of the air at San Diego/Brown Fld: temperature 73.0 degrees Fahrenheit and dew point 41.0, 31 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 7,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SDMFIG. B THE AIR AT SAN DIEGO/BROWN FLDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00020 F30 F40 F50 F60 F70 F80 FSATURATES 7,300 FT ABOVE THE STATION, AT 34.3 FTEMPERATURE 73.0 FDEW POINT 41.0 FSPREAD 32.0 FRELATIVE HUMIDITY 31 PER CENTTHE AIR COOLS ABOUT 5.4 F EACH 1,000 FT IT RISES, AND ITS DEW POINT ABOUT 1 FSOLID: THE LIFTED AIR'S TEMPERATURE; DASHED: ITS DEW POINTTITLESan Diego/Brown Fld, the airSTATION REPORT · ASOS SDMTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SDM-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (110 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 16 mph.

Plan of the wind at San Diego/Brown Fld, north up: blowing from 110 degrees, the east southeast, at 6 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SDMFIG. C THE WIND AT SAN DIEGO/BROWN FLDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 110°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESan Diego/Brown Fld, the windSTATION REPORT · ASOS SDMTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SDM-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of San Diego/Brown Fld, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in California

33 places, each with its own forecast and its own instruments.

Near Potrero

The nearest places, each with its own forecast and the instruments nearest it.

Near Potrero

River and lake gauges