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Brockton, Massachusetts

City in Plymouth County, Massachusetts

Air quality

The air at Brockton

Index 23, good, led by fine particles. Read at 7 AM from its reporting area, North Bristol-Plymouth (MA), 9 miles off.

23Good
  • Fine particles (PM2.5)23Good1.1 mi
  • Ozone12Good16 ppb1.1 mi
  • Coarse particles (PM10)-17.5 mi
  • Nitrogen dioxide12Good13 ppb17 mi
  • Sulfur dioxide0Good0.2 ppb17.5 mi
  • Carbon monoxide-0.4 ppm17 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 30, good.

Smoke, the next 44 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Brockton

None in the last 3 days, to Fri 6 AM. 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 Brockton, the next 44 hours

Mist or haze: visibility falls to 3 miles Fri 2 PM.

FriSat

On the radar over Brockton, MassachusettsReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Brockton, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now4 instruments

StoughtonMA021

Beside a road/4.5 mi away/232 ft/100 ft above here

temp, pavement temp, wind, visibility, precip

Rank443of 744

Blue HillsBLUM3

At a river or reservoir gauge/9.6 mi away/207 ft/75 ft above here

temp, wind, gust, humidity, pressure

Rank255of 744

Mansfield1B9

At an airfield/10.6 mi away/118 ft/14 ft below here

temp, wind, gust, visibility, precip, pressure

Rank378of 744

measured daily2 instruments

Brockton 3SSEBROM3

At a cooperative observer's station/2.7 mi away/85 ft/47 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Mansfield, drawn

The nearest airport reporting now, 10.6 mi from Brockton, Massachusetts. From its report of Oct 16, 2026, 7:15 AM local time: 3 of its 6 sheets.

The sky

Overcast at 2,300 ft; the ceiling is 2,300 ft; visibility 9 mi.

Section of the sky over Mansfield, height above the station to scale: overcast cloud with its base at 2,300 feet, the ceiling at 2,300 feet, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1B9FIG. A THE SKY OVER MANSFIELDSECTION, 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 STATION05001,0001,5002,0002,5003,0003,500ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 2,300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 2,300 FTVISIBILITY, MILES: 9 MI0510TITLEMansfield, the skySTATION REPORT · ASOS 1B9TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-1B9-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

52.0 F with a dew point of 47.3 F, 84 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,100 ft up; the lowest cloud reported is at 2,300 ft.

Chart of the air at Mansfield: temperature 52.0 degrees Fahrenheit and dew point 47.3, 84 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,100 feet above the station, against the lowest cloud reported at 2,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1B9FIG. B THE AIR AT MANSFIELDTHE 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 FSATURATES 1,100 FT ABOVE THE STATION, AT 46.2 FLOWEST CLOUD REPORTED, OVC 2,300 FTTEMPERATURE 52.0 FDEW POINT 47.3 FSPREAD 4.7 FRELATIVE HUMIDITY 84 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 POINTTITLEMansfield, the airSTATION REPORT · ASOS 1B9TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-1B9-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southeast (140 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Mansfield, north up: blowing from 140 degrees, the southeast, 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 1B9FIG. C THE WIND AT MANSFIELDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 140°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMansfield, the windSTATION REPORT · ASOS 1B9TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-1B9-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Brockton 3SSE (BROM3), 2.7 miles from here, read 13 Oct, 23:59. measured daily

Elsewhere in Massachusetts

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

Near Brockton

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

Near Brockton

River and lake gauges