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Onancock, Virginia

Town in Accomack County, Virginia

Air quality

The air at Onancock

Index 37, good, led by fine particles. Read at 12 AM from its reporting area, Hampton Roads (VA), 68 miles off.

37Good
  • Fine particles (PM2.5)37Good-
  • Ozone20Good-
  • Coarse particles (PM10)18Good-

The days ahead

Moderate each day through Today, led by fine particles. Yesterday measured 56, moderate.

Smoke, the next 44 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Onancock

None in the last 3 days, to Thu 11 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 Onancock, the next 44 hours

Visibility stays 4 miles or more through Sat 8 PM, lowest 4 miles Sat 8 AM.

FriSat

On the radar over Onancock, VirginiaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Onancock, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now3 instruments

measured daily2 instruments

Onley 0.5 NNEVA-AC-27

In a volunteer observer's own ground/1.7 mi away/0 ft/18 ft below here

precip, snowfall, snow depth

Rank-

PainterPAIV2

At a cooperative observer's station/9.9 mi away/26 ft/8 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Melfa/Accomack Arpt, drawn

The nearest airport reporting now, 4.6 mi from Onancock, Virginia. From its report of Oct 16, 2026, 12:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 1,900 ft; the ceiling is 1,900 ft; visibility 10 mi or more.

Section of the sky over Melfa/Accomack Arpt, height above the station to scale: overcast cloud with its base at 1,900 feet, the ceiling at 1,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MFVFIG. A THE SKY OVER MELFA/ACCOMACK ARPTSECTION, 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 1,900 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMelfa/Accomack Arpt, the skySTATION REPORT · ASOS MFVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MFV-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

64.0 F with a dew point of 60.4 F, 88 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 1,900 ft.

Chart of the air at Melfa/Accomack Arpt: temperature 64.0 degrees Fahrenheit and dew point 60.4, 88 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 1,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MFVFIG. B THE AIR AT MELFA/ACCOMACK ARPTTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 FSATURATES 800 FT ABOVE THE STATION, AT 59.5 FLOWEST CLOUD REPORTED, OVC 1,900 FTTEMPERATURE 64.0 FDEW POINT 60.4 FSPREAD 3.6 FRELATIVE HUMIDITY 88 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 POINTTITLEMelfa/Accomack Arpt, the airSTATION REPORT · ASOS MFVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MFV-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (90 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Melfa/Accomack Arpt, north up: blowing from 90 degrees, the east, 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 MFVFIG. C THE WIND AT MELFA/ACCOMACK ARPTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 90°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMelfa/Accomack Arpt, the windSTATION REPORT · ASOS MFVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MFV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Melfa/Accomack Arpt, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Virginia

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

Near Onancock

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

Near Onancock

River and lake gauges