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Arlington, Massachusetts

Community in Middlesex County, Massachusetts

Air quality

The air at Arlington

Index 19, good, led by fine particles. Read at 5 AM from its reporting area, Boston Metro (MA), 3 miles off.

19Good
  • Fine particles (PM2.5)19Good-
  • Ozone17Good-
  • Coarse particles (PM10)5Good-

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 24, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Arlington

None in the last 24 hours; 0.13 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
0.13in

Visibility

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

Visibility stays 4 miles or more through Sun 2 AM, lowest 5 miles Fri 9 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Arlington, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now4 instruments

measured daily2 instruments

Arlington 0.3 SWMA-MD-249

In a volunteer observer's own ground/0.3 mi away/153 ft/81 ft above here

precip, snowfall, snow depth

Rank-

Jamacia PlainJPBM3

At a cooperative observer's station/8.2 mi away/102 ft/30 ft above here

snowfall, snow depth, precip, high, low

Rank464of 744

Station report

The weather at Hanscom Fld/Bedford, drawn

The nearest airport reporting now, 7.3 mi from Arlington, Massachusetts. From its report of Oct 16, 2026, 4:51 AM local time: 3 of its 6 sheets.

The sky

Broken at 8,000 ft, overcast at 9,000 ft; the ceiling is 8,000 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 8,000 feet, overcast cloud with its base at 9,000 feet, the ceiling at 8,000 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 STATION02,5005,0007,50010,00012,50015,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 9,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 8,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 8,000 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

51.0 F with a dew point of 42.0 F, 71 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up; the lowest cloud reported is at 8,000 ft.

Chart of the air at Hanscom Fld/Bedford: temperature 51.0 degrees Fahrenheit and dew point 42.0, 71 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station, against the lowest cloud reported at 8,000 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 STATION01,0002,0003,0004,0005,0006,0007,0008,00030 F40 F50 F60 FSATURATES 2,100 FT ABOVE THE STATION, AT 40.0 FLOWEST CLOUD REPORTED, BKN 8,000 FTTEMPERATURE 51.0 FDEW POINT 42.0 FSPREAD 9.0 FRELATIVE HUMIDITY 71 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-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Hanscom Fld/Bedford, north up: blowing from 180 degrees, the south, 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 BEDFIG. C THE WIND AT HANSCOM FLD/BEDFORDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE 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

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Snow on the ground

Elsewhere in Massachusetts

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

Near Arlington

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

Near Arlington

River and lake gauges