Storm Station
Sign in

Chula Vista, California

City in San Diego County, California

Air quality

The air at Chula Vista

Index 55, moderate, led by fine particles. Read at 10 PM from its reporting area, Border Area (CA), 7 miles off.

55Moderate
  • Fine particles (PM2.5)55Moderate2.3 mi
  • Ozone35Good6 ppb2.3 mi
  • Coarse particles (PM10)53Moderate2.3 mi

The days ahead

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

Smoke, the next 43 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at Chula Vista

None in the last 3 days, to Thu 10 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 Chula Vista, the next 43 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Chula Vista, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now3 instruments

San Miguel RAWSMIGC1

A remote fire weather station/4.9 mi away/617 ft/241 ft above here

temp, wind, gust, humidity, pressure

Rank-

measured daily2 instruments

Chula VistaCVAC1

At a cooperative observer's station/3.8 mi away/75 ft/301 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at San Diego/Brown Fld, drawn

The nearest airport reporting now, 4.6 mi from Chula Vista, California. From its report of Oct 15, 2026, 10:53 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

70.0 F with a dew point of 44.0 F, 39 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 5,900 ft up.

Chart of the air at San Diego/Brown Fld: temperature 70.0 degrees Fahrenheit and dew point 44.0, 39 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 5,900 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 STATION01,0002,0003,0004,0005,0006,0007,0008,00030 F40 F50 F60 F70 F80 FSATURATES 5,900 FT ABOVE THE STATION, AT 38.4 FTEMPERATURE 70.0 FDEW POINT 44.0 FSPREAD 26.0 FRELATIVE HUMIDITY 39 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 northeast (60 degrees) at 5 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 60 degrees, the east northeast, at 5 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 60°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 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

-

Snow on the ground

Elsewhere in California

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

Near Chula Vista

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

Near Chula Vista

River and lake gauges