Storm Station
San Ramon, California
64°
Mostly clear· Feels like 64°·Light breeze 5 mph WSW
Partly sunny. High near 68, with temperatures falling to around 66 in the afternoon. Southwest wind 5 to 10 mph, with gusts as high as 23 mph.
-UV
-Air quality
67%Humidity
31%Cloud

What is measuring near here

The 4 instruments nearest San Ramon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.7 miles away.

measured now2 instruments

BlackhawkBHWC1

At a river or reservoir gauge/6.3 mi away/1,804 ft/1,248 ft above here

temp, wind, gust, humidity, pressure

Rank544of 3,127

LivermoreLVK

At an airfield/8.1 mi away/387 ft/169 ft below here

temp, wind, gust, visibility, precip, pressure

Rank7of 3,127

measured daily2 instruments

Danville 4.9 ESECA-CC-20

In a volunteer observer's own ground/3.7 mi away/724 ft/168 ft above here

precip, snowfall, snow depth

Rank-

Diablo - Mount DiabloMDJC1

At a cooperative observer's station/8.0 mi away/3,102 ft/2,546 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Livermore, drawn

The nearest airport reporting now, 8.1 mi from San Ramon. From its report of Sep 27, 2026, 5:53 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 6 mi.

Section of the sky over Livermore, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LVKFIG. A THE SKY OVER LIVERMORESECTION, 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: 6 MI0510TITLELivermore, the skySTATION REPORT · ASOS LVKTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-LVK-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

55.0 F with a dew point of 51.0 F, 86 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 Livermore: temperature 55.0 degrees Fahrenheit and dew point 51.0, 86 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 LVKFIG. B THE AIR AT LIVERMORETHE 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 900 FT ABOVE THE STATION, AT 50.1 FTEMPERATURE 55.0 FDEW POINT 51.0 FSPREAD 4.0 FRELATIVE HUMIDITY 86 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 POINTTITLELivermore, the airSTATION REPORT · ASOS LVKTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-LVK-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Livermore, north up: blowing from 180 degrees, the south, 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 LVKFIG. C THE WIND AT LIVERMOREPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELivermore, the windSTATION REPORT · ASOS LVKTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-LVK-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Livermore, 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 Ramon

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