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Claremont, California

City in Los Angeles County, California

Air quality

The air at Claremont

Index 43, good, led by ozone. Read at 8 PM from its reporting area, E San Gabriel Vly (CA), 10 miles off.

43Good
  • Fine particles (PM2.5)16Good-
  • Ozone43Good-
  • Coarse particles (PM10)15Good-

The days ahead

Good each day through Fri Oct 16, led by ozone. Yesterday measured 49, good.

Smoke, the next 46 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 22 or under.

ThuFriSat

Precipitation

What has fallen at Claremont

None in the last 3 days, to Thu 7 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 Claremont, the next 46 hours

Visibility stays 10 miles or more through Sat 5 PM.

ThuFriSat

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

What is measuring near here

The 6 instruments nearest Claremont, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now4 instruments

CableCCB

At an airfield/1.8 mi away/1,423 ft/156 ft above here

temp, wind, gust, visibility, precip, pressure

Rank1,292of 4,465

measured daily2 instruments

Claremont 0.6 SSECA-LA-95

In a volunteer observer's own ground/0.6 mi away/1,367 ft/100 ft above here

precip, snowfall, snow depth

Rank-

Covina YardCTFC1

At a cooperative observer's station/9.4 mi away/594 ft/673 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Cable, drawn

The nearest airport reporting now, 1.8 mi from Claremont, California. From its report of Oct 15, 2026, 8:10 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 Cable, 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 CCBFIG. A THE SKY OVER CABLESECTION, 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 MORE0510TITLECable, the skySTATION REPORT · ASOS CCBTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CCB-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

80.6 F with a dew point of 30.2 F, 16 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 11,300 ft up.

Chart of the air at Cable: temperature 80.6 degrees Fahrenheit and dew point 30.2, 16 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 11,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CCBFIG. B THE AIR AT CABLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00010,00012,00014,00010 F30 F50 F70 F90 FSATURATES 11,300 FT ABOVE THE STATION, AT 20.2 FTEMPERATURE 80.6 FDEW POINT 30.2 FSPREAD 50.4 FRELATIVE HUMIDITY 16 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 POINTTITLECable, the airSTATION REPORT · ASOS CCBTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CCB-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (100 degrees) at 15 mph, gusting 29 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Cable, north up: blowing from 100 degrees, the east, at 15 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CCBFIG. C THE WIND AT CABLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 100°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECable, the windSTATION REPORT · ASOS CCBTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CCB-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Cable, 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 Claremont

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

Near Claremont

River and lake gauges