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Williamstown, Vermont

Community in Orange County, Vermont

Air quality

The air at Williamstown

Index 17, good, led by fine particles. Read at 5 AM from its reporting area, Grafton County (NH), 38 miles off.

17Good
  • Fine particles (PM2.5)17Good-
  • Ozone10Good-

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 25, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Williamstown

None in the last 24 hours; 2.95 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
2.95in

Visibility

How far you can see at Williamstown, the next 46 hours

Fog: visibility falls to 0.8 miles Fri 4 PM, under a mile for 1 hour.

FriSat

On the radar over Williamstown, VermontReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Williamstown, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.1 miles away.

measured now5 instruments

Mount MansfieldS2041

At a soil climate station/32.0 mi away/2,236 ft/1,376 ft above here

temp, humidity, soil temp, soil moisture

Rank282of 354

measured daily2 instruments

PlainfieldPLFV1

At a cooperative observer's station/12.3 mi away/850 ft/10 ft below here

snowfall, snow depth, precip, high, low

Rank354of 354

Station report

The weather at Barre-Montpelier, drawn

The nearest airport reporting now, 5.7 mi from Williamstown, Vermont. From its report of Oct 16, 2026, 4:51 AM local time: 3 of its 6 sheets.

The sky

Overcast at 4,900 ft; the ceiling is 4,900 ft; visibility 10 mi or more.

Section of the sky over Barre-Montpelier, height above the station to scale: overcast cloud with its base at 4,900 feet, the ceiling at 4,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MPVFIG. A THE SKY OVER BARRE-MONTPELIERSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,0008,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,900 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 4,900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEBarre-Montpelier, the skySTATION REPORT · ASOS MPVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MPV-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

43.0 F with a dew point of 38.0 F, 82 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 4,900 ft.

Chart of the air at Barre-Montpelier: temperature 43.0 degrees Fahrenheit and dew point 38.0, 82 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station, against the lowest cloud reported at 4,900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MPVFIG. B THE AIR AT BARRE-MONTPELIERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00030 F40 F50 FSATURATES 1,200 FT ABOVE THE STATION, AT 36.8 FLOWEST CLOUD REPORTED, OVC 4,900 FTTEMPERATURE 43.0 FDEW POINT 38.0 FSPREAD 5.0 FRELATIVE HUMIDITY 82 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 POINTTITLEBarre-Montpelier, the airSTATION REPORT · ASOS MPVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MPV-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Barre-Montpelier, north up: blowing from 180 degrees, the south, at 7 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 MPVFIG. C THE WIND AT BARRE-MONTPELIERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBarre-Montpelier, the windSTATION REPORT · ASOS MPVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MPV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Barre-Montpelier, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Plainfield (PLFV1), 12.3 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Vermont

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

Near Williamstown

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

Near Williamstown

River and lake gauges