Storm Station
San Mateo, California
57°
Mostly clear· Feels like 57°·Light breeze 6 mph WSW
Mostly sunny. High near 68, with temperatures falling to around 65 in the afternoon. West wind 5 to 14 mph, with gusts as high as 22 mph.
-UV
-Air quality
82%Humidity
33%Cloud

What is measuring near here

The 4 instruments nearest San Mateo, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now2 instruments

San Carlos AirportSQL

At an airfield/4.7 mi away/3 ft/8 ft below here

temp, wind, gust, visibility, precip, pressure

Rank3,103of 3,127

Pulgas RAWSPUGC1

A remote fire weather station/5.7 mi away/650 ft/639 ft above here

temp, wind, gust, humidity, pressure

Rank576of 3,127

measured daily2 instruments

San Mateo 0.1 SCA-SM-46

In a volunteer observer's own ground/0.2 mi away/11 ft/level with here

precip, snowfall, snow depth

Rank-

Redwood CityRWCC1

At a cooperative observer's station/6.9 mi away/16 ft/5 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at San Carlos Airport, drawn

The nearest airport reporting now, 4.7 mi from San Mateo. From its report of Sep 27, 2026, 6:15 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 1,800 ft; visibility 9 mi.

Section of the sky over San Carlos Airport, height above the station to scale: a few clouds cloud with its base at 1,800 feet, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SQLFIG. A THE SKY OVER SAN CARLOS AIRPORTSECTION, 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 SHEETFEW 1,800 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 9 MI0510TITLESan Carlos Airport, the skySTATION REPORT · ASOS SQLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SQL-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

59.0 F with a dew point of 53.6 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,300 ft up; the lowest cloud reported is at 1,800 ft.

Chart of the air at San Carlos Airport: temperature 59.0 degrees Fahrenheit and dew point 53.6, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,300 feet above the station, against the lowest cloud reported at 1,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SQLFIG. B THE AIR AT SAN CARLOS AIRPORTTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 1,300 FT ABOVE THE STATION, AT 52.3 FLOWEST CLOUD REPORTED, FEW 1,800 FTTEMPERATURE 59.0 FDEW POINT 53.6 FSPREAD 5.4 FRELATIVE HUMIDITY 82 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 Carlos Airport, the airSTATION REPORT · ASOS SQLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SQL-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (260 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at San Carlos Airport, north up: blowing from 260 degrees, the west, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SQLFIG. C THE WIND AT SAN CARLOS AIRPORTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 260°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESan Carlos Airport, the windSTATION REPORT · ASOS SQLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SQL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of San Carlos Airport, 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 Mateo

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