Storm Station
Rowland Heights, California
80°
Partly cloudy· Feels like 80°·Light breeze 7 mph WSW
Mostly cloudy, with a low around 68. East southeast wind around 5 mph.
-UV
-Air quality
46%Humidity
72%Cloud

What is measuring near here

The 4 instruments nearest Rowland Heights, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.5 miles away.

measured now2 instruments

Tonner CanyonTNRC1

At a river or reservoir gauge/5.0 mi away/1,335 ft/849 ft above here

temp, wind, gust, humidity, pressure

Rank596of 3,120

Fullerton MunicipalFUL

At an airfield/9.1 mi away/95 ft/391 ft below here

temp, wind, gust, visibility, precip, pressure

Rank7of 3,120

measured daily2 instruments

Walnut 0.5 SSWCA-LA-120

In a volunteer observer's own ground/3.5 mi away/565 ft/79 ft above here

precip, snowfall, snow depth

Rank-

Covina YardCTFC1

At a cooperative observer's station/7.6 mi away/594 ft/108 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Fullerton Municipal, drawn

The nearest airport reporting now, 9.1 mi from Rowland Heights. From its report of Sep 27, 2026, 3:53 AM 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 Fullerton Municipal, 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 FULFIG. A THE SKY OVER FULLERTON MUNICIPALSECTION, 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 MORE0510TITLEFullerton Municipal, the skySTATION REPORT · ASOS FULTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-FUL-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

72.0 F with a dew point of 68.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Fullerton Municipal: temperature 72.0 degrees Fahrenheit and dew point 68.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FULFIG. B THE AIR AT FULLERTON MUNICIPALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 FSATURATES 900 FT ABOVE THE STATION, AT 67.0 FTEMPERATURE 72.0 FDEW POINT 68.0 FSPREAD 4.0 FRELATIVE HUMIDITY 87 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 POINTTITLEFullerton Municipal, the airSTATION REPORT · ASOS FULTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-FUL-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (210 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Fullerton Municipal, north up: blowing from 210 degrees, the south southwest, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FULFIG. C THE WIND AT FULLERTON MUNICIPALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 210°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEFullerton Municipal, the windSTATION REPORT · ASOS FULTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-FUL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Fullerton Municipal, in 6 sheets, each beside the Field Book plates that explain it

-in

Snow on the ground

Elsewhere in California

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

Near Rowland Heights

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