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Marlborough, Massachusetts

City in Middlesex County, Massachusetts

Air quality

The air at Marlborough

Index 28, good, led by fine particles. Read at 2 AM from its reporting area, West Middlesex (MA), 12 miles off.

28Good
  • Fine particles (PM2.5)28Good-
  • Ozone0Good-

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 26, good.

Smoke, the next 42 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Marlborough

None in the last 24 hours; 0.15 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.15in

Visibility

How far you can see at Marlborough, the next 42 hours

Fog: visibility falls to 0.9 miles Fri 10 AM, under a mile for 1 hour.

FriSat

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

What is measuring near here

The 6 instruments nearest Marlborough, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now4 instruments

measured daily2 instruments

Marlborough 1.6 WNWMA-MD-164

In a volunteer observer's own ground/1.9 mi away/321 ft/105 ft below here

precip, snowfall, snow depth

Rank-

MilfordMILM3

At a cooperative observer's station/13.0 mi away/273 ft/153 ft below here

snowfall, snow depth, precip, high, low

Rank56of 744

Station report

The weather at Hanscom Fld/Bedford, drawn

The nearest airport reporting now, 15.4 mi from Marlborough, Massachusetts. From its report of Oct 16, 2026, 2:51 AM local time: 3 of its 6 sheets.

The sky

Broken at 11,000 ft; the ceiling is 11,000 ft; visibility 10 mi or more.

Section of the sky over Hanscom Fld/Bedford, height above the station to scale: broken cloud with its base at 11,000 feet, the ceiling at 11,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BEDFIG. A THE SKY OVER HANSCOM FLD/BEDFORDSECTION, 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 STATION02,5005,0007,50010,00012,50015,00017,500ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 11,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 11,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEHanscom Fld/Bedford, the skySTATION REPORT · ASOS BEDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-BED-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

43.0 F with a dew point of 42.0 F, 96 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 11,000 ft.

Chart of the air at Hanscom Fld/Bedford: temperature 43.0 degrees Fahrenheit and dew point 42.0, 96 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 11,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BEDFIG. B THE AIR AT HANSCOM FLD/BEDFORDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 FSATURATES 200 FT ABOVE THE STATION, AT 41.7 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, BKN 11,000 FTTEMPERATURE AND DEW POINT 43.0 F, 42.0 FRELATIVE HUMIDITY 96 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 POINTTITLEHanscom Fld/Bedford, the airSTATION REPORT · ASOS BEDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-BED-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Hanscom Fld/Bedford, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BEDFIG. C THE WIND AT HANSCOM FLD/BEDFORDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHanscom Fld/Bedford, the windSTATION REPORT · ASOS BEDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-BED-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Hanscom Fld/Bedford, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Milford (MILM3), 13.0 miles from here, read 15 Oct, 07:00. measured daily

Elsewhere in Massachusetts

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

Near Marlborough

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

Near Marlborough

River and lake gauges