Storm Station
San Marcos, California
80°
Partly cloudy· Feels like 80°·Light breeze 5 mph W
Mostly cloudy, with a high near 84. Southwest wind 0 to 5 mph.
-UV
-Air quality
51%Humidity
58%Cloud

What is measuring near here

The 5 instruments nearest San Marcos, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.

measured now3 instruments

San Marcos Cnty LandfillNMLC1

At a river or reservoir gauge/3.7 mi away/728 ft/163 ft above here

temp, wind, gust, humidity, pressure

Rank2,769of 3,128

Carlsbad/PalomarCRQ

At an airfield/6.2 mi away/328 ft/237 ft below here

temp, wind, gust, visibility, precip, pressure

Rank8of 3,128

Fallbrook 5 NE53151

At a climate reference station/20.1 mi away/1,140 ft/575 ft above here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

San Marcos 1.7 WCA-SD-135

In a volunteer observer's own ground/1.8 mi away/533 ft/32 ft below here

precip, snowfall, snow depth

Rank-

Escondido No 2ESCC1

At a cooperative observer's station/5.1 mi away/666 ft/101 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Carlsbad/Palomar, drawn

The nearest airport reporting now, 6.2 mi from San Marcos. From its report of Sep 27, 2026, 6:53 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 Carlsbad/Palomar, 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 CRQFIG. A THE SKY OVER CARLSBAD/PALOMARSECTION, 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 MORE0510TITLECarlsbad/Palomar, the skySTATION REPORT · ASOS CRQTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-CRQ-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

70.0 F with a dew point of 67.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up.

Chart of the air at Carlsbad/Palomar: temperature 70.0 degrees Fahrenheit and dew point 67.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CRQFIG. B THE AIR AT CARLSBAD/PALOMARTHE 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 700 FT ABOVE THE STATION, AT 66.3 FTEMPERATURE 70.0 FDEW POINT 67.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLECarlsbad/Palomar, the airSTATION REPORT · ASOS CRQTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-CRQ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (90 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Carlsbad/Palomar, north up: blowing from 90 degrees, the east, 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 CRQFIG. C THE WIND AT CARLSBAD/PALOMARPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 90°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECarlsbad/Palomar, the windSTATION REPORT · ASOS CRQTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-CRQ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Carlsbad/Palomar, 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 San Marcos

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