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Northfield, Massachusetts

Community in Franklin County, Massachusetts

Air quality

The air at Northfield

Index 20, good, led by ozone. Read at 12 AM from its reporting area, Franklin (MA), 11 miles off.

20Good
  • Fine particles (PM2.5)11Good9.9 mi
  • Ozone20Good23 ppb9.9 mi

The days ahead

Good each day through Tue Oct 20, led by fine particles. Yesterday measured 29, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 8 PM.

SatSun

Precipitation

What has fallen at Northfield

0.46 in in the last 24 hours, 0.50 in over the last 3 days, to Fri 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.46in
Last 3 days
0.50in

Visibility

How far you can see at Northfield, the next 45 hours

Visibility stays 10 miles or more through Sun 8 PM.

SatSun

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

What is measuring near here

The 6 instruments nearest Northfield, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.3 miles away.

measured now4 instruments

Tully LakeATLM3

At a river or reservoir gauge/12.0 mi away/646 ft/361 ft above here

temp, wind, gust, humidity, pressure

Rank282of 747

Orange (ASOS)ORE

At an airfield/12.1 mi away/538 ft/253 ft above here

temp, wind, gust, visibility, precip, pressure

Rank7of 747

measured daily2 instruments

Gill 2.2 WSWMA-FR-14

In a volunteer observer's own ground/6.0 mi away/250 ft/35 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Orange (ASOS), drawn

The nearest airport reporting now, 12.1 mi from Northfield, Massachusetts. From its report of Oct 16, 2026, 11:52 PM local time: 3 of its 6 sheets.

The sky

No cloud reported; visibility 10 mi or more.

Section of the sky over Orange (ASOS), height above the station to scale: no cloud reported, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OREFIG. A THE SKY OVER ORANGE (ASOS)SECTION, 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 SHEETNO CLOUD REPORTEDVISIBILITY, MILES: 10 MI OR MORE0510TITLEOrange (ASOS), the skySTATION REPORT · ASOS ORETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-ORE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

56.0 F with a dew point of 48.0 F, 74 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up.

Chart of the air at Orange (ASOS): temperature 56.0 degrees Fahrenheit and dew point 48.0, 74 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OREFIG. B THE AIR AT ORANGE (ASOS)THE 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 F70 FSATURATES 1,800 FT ABOVE THE STATION, AT 46.2 FTEMPERATURE 56.0 FDEW POINT 48.0 FSPREAD 8.0 FRELATIVE HUMIDITY 74 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 POINTTITLEOrange (ASOS), the airSTATION REPORT · ASOS ORETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-ORE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (290 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Orange (ASOS), north up: blowing from 290 degrees, the west northwest, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT OREFIG. C THE WIND AT ORANGE (ASOS)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 290°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOrange (ASOS), the windSTATION REPORT · ASOS ORETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-ORE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Orange (ASOS), in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Water Treatment Plant (GRFM3), 11.9 miles from here, read 16 Oct, 07:06. measured daily

Elsewhere in Massachusetts

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

Near Northfield

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

Near Northfield

River and lake gauges