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Sunol, California

Community in Alameda County, California

Air quality

The air at Sunol

Index 44, good, led by ozone. Read at 10 PM from its reporting area, Fremont (CA), 8 miles off.

44Good
  • Fine particles (PM2.5)-18.7 mi
  • Ozone44Good12 ppb18.7 mi
  • Nitrogen dioxide22Good23.6 ppb18.7 mi
  • Carbon monoxide-0.5 ppm18.7 mi

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 33, good.

Smoke, the next 43 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at Sunol

None in the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Sunol, the next 43 hours

Visibility stays 10 miles or more through Sat 5 PM.

FriSat

On the radar over Sunol, CaliforniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Sunol, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.9 miles away.

measured now4 instruments

LivermoreLVK

At an airfield/7.3 mi away/387 ft/165 ft below here

temp, wind, gust, visibility, precip, pressure

Rank587of 4,465

measured daily2 instruments

FremontFETC1

At a cooperative observer's station/8.0 mi away/39 ft/513 ft below here

snowfall, snow depth, precip, high, low

Rank2,798of 4,465

Station report

The weather at Livermore, drawn

The nearest airport reporting now, 7.3 mi from Sunol, California. From its report of Oct 15, 2026, 10:53 PM 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 Livermore, 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 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: 10 MI OR MORE0510TITLELivermore, the skySTATION REPORT · ASOS LVKTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-LVK-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

61.0 F with a dew point of 34.0 F, 36 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 6,100 ft up.

Chart of the air at Livermore: temperature 61.0 degrees Fahrenheit and dew point 34.0, 36 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 6,100 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 STATION01,0002,0003,0004,0005,0006,0007,0008,00020 F30 F40 F50 F60 F70 FSATURATES 6,100 FT ABOVE THE STATION, AT 28.4 FTEMPERATURE 61.0 FDEW POINT 34.0 FSPREAD 27.0 FRELATIVE HUMIDITY 36 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 6DATE2026-10-16IDSR-LVK-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east northeast (70 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 23 mph.

Plan of the wind at Livermore, north up: blowing from 70 degrees, the east northeast, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, 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 70°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELivermore, the windSTATION REPORT · ASOS LVKTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-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

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Snow on the ground

Elsewhere in California

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

Near Sunol

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

Near Sunol

River and lake gauges