Storm Station
Hillsborough, California
57°
Mostly clear· Feels like 57°·Gentle breeze 9 mph WSW
Mostly sunny. High near 66, with temperatures falling to around 64 in the afternoon. West wind 6 to 15 mph, with gusts as high as 23 mph.
-UV
-Air quality
84%Humidity
35%Cloud

What is measuring near here

The 4 instruments nearest Hillsborough, 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 now2 instruments

San Francisco INTLSFO

At an airfield/4.4 mi away/16 ft/314 ft below here

temp, wind, gust, visibility, precip, pressure

Rank2,008of 3,128

Spring Vly RAWSHSPC1

A remote fire weather station/4.4 mi away/1,030 ft/700 ft above here

temp, wind, gust, humidity, pressure

Rank571of 3,128

measured daily2 instruments

Burlingame 1.5 SECA-SM-48

In a volunteer observer's own ground/1.4 mi away/38 ft/292 ft below here

precip, snowfall, snow depth

Rank-

Half Moon BayHMBC1

At a cooperative observer's station/7.6 mi away/23 ft/307 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at San Francisco INTL, drawn

The nearest airport reporting now, 4.4 mi from Hillsborough. From its report of Sep 27, 2026, 6:56 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 700 ft, overcast at 1,400 ft; the ceiling is 1,400 ft; visibility 10 mi or more.

Section of the sky over San Francisco INTL, height above the station to scale: a few clouds cloud with its base at 700 feet, overcast cloud with its base at 1,400 feet, the ceiling at 1,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SFOFIG. A THE SKY OVER SAN FRANCISCO INTLSECTION, 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 SHEETOVC 1,400 FTOVERCAST, 8 EIGHTHS OF THE SKYFEW 700 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 1,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESan Francisco INTL, the skySTATION REPORT · ASOS SFOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SFO-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 53.0 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up; the lowest cloud reported is at 700 ft.

Chart of the air at San Francisco INTL: temperature 59.0 degrees Fahrenheit and dew point 53.0, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station, against the lowest cloud reported at 700 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SFOFIG. B THE AIR AT SAN FRANCISCO INTLTHE 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 1,400 FT ABOVE THE STATION, AT 51.6 FLOWEST CLOUD REPORTED, FEW 700 FTTEMPERATURE 59.0 FDEW POINT 53.0 FSPREAD 6.0 FRELATIVE HUMIDITY 80 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 Francisco INTL, the airSTATION REPORT · ASOS SFOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SFO-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (260 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at San Francisco INTL, north up: blowing from 260 degrees, the west, at 9 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 SFOFIG. C THE WIND AT SAN FRANCISCO INTLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 260°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESan Francisco INTL, the windSTATION REPORT · ASOS SFOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SFO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of San Francisco INTL, 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 Hillsborough

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