Storm Station
Hartley, California
71°
Partly cloudy· Feels like 71°·Light breeze 6 mph SSW
Mostly cloudy. Low around 55, with temperatures rising to around 57 overnight. South southwest wind around 5 mph.
-UV
43Air quality
29%Humidity
53%Cloud

What is measuring near here

The 5 instruments nearest Hartley, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.0 miles away.

measured now3 instruments

Vacaville (Was O45)VCB

At an airfield/3.0 mi away/112 ft/21 ft below here

temp, wind, gust, visibility, precip, pressure

Rank7of 3,115

Hwy 80 at West CapitolCD042

Beside a road/22.9 mi away/30 ft/103 ft below here

temp, pavement temp, wind, visibility, precip

Rank2,572of 3,115

measured daily2 instruments

Vacaville 2.3 NWCA-SO-16

In a volunteer observer's own ground/3.2 mi away/433 ft/300 ft above here

precip, snowfall, snow depth

Rank-

WintersWINC1

At a cooperative observer's station/7.0 mi away/126 ft/7 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Vacaville (Was O45), drawn

The nearest airport reporting now, 3.0 mi from Hartley. From its report of Sep 26, 2026, 11:53 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 Vacaville (Was O45), 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 VCBFIG. A THE SKY OVER VACAVILLE (WAS O45)SECTION, 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 MORE0510TITLEVacaville (Was O45), the skySTATION REPORT · ASOS VCBTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-VCB-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

64.0 F with a dew point of 48.0 F, 56 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,700 ft up.

Chart of the air at Vacaville (Was O45): temperature 64.0 degrees Fahrenheit and dew point 48.0, 56 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VCBFIG. B THE AIR AT VACAVILLE (WAS O45)THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00030 F40 F50 F60 F70 FSATURATES 3,700 FT ABOVE THE STATION, AT 44.5 FTEMPERATURE 64.0 FDEW POINT 48.0 FSPREAD 16.0 FRELATIVE HUMIDITY 56 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 POINTTITLEVacaville (Was O45), the airSTATION REPORT · ASOS VCBTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-VCB-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (230 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Vacaville (Was O45), north up: blowing from 230 degrees, the southwest, at 6 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 VCBFIG. C THE WIND AT VACAVILLE (WAS O45)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 230°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEVacaville (Was O45), the windSTATION REPORT · ASOS VCBTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-VCB-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Vacaville (Was O45), 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 Hartley

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