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Deerfield, Massachusetts

Community in Franklin County, Massachusetts

Air quality

The air at Deerfield

Index 21, good, led by fine particles. Read at 4 AM from its reporting area, Franklin (MA), 3 miles off.

21Good
  • Fine particles (PM2.5)21Good4.5 mi
  • Ozone7Good8 ppb4.5 mi
  • Nitrogen dioxide10Good11 ppb24 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 29, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Deerfield

None in the last 24 hours; 0.08 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.08in

Visibility

How far you can see at Deerfield, the next 41 hours

Fog: visibility falls to 0.7 miles Fri 8 AM, under a mile for 2 hours.

FriSat

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

What is measuring near here

The 6 instruments nearest Deerfield, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now4 instruments

Orange (ASOS)ORE

At an airfield/16.1 mi away/538 ft/374 ft above here

temp, wind, gust, visibility, precip, pressure

Rank5of 744

Tully LakeATLM3

At a river or reservoir gauge/20.3 mi away/646 ft/482 ft above here

temp, wind, gust, humidity, pressure

Rank246of 744

measured daily2 instruments

Deerfield 0.4 SWMA-FR-54

In a volunteer observer's own ground/0.2 mi away/158 ft/6 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Orange (ASOS), drawn

The nearest airport reporting now, 16.1 mi from Deerfield, Massachusetts. From its report of Oct 16, 2026, 3:52 AM 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 6DATE2026-10-16IDSR-ORE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

45.0 F with a dew point of 42.0 F, 89 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up.

Chart of the air at Orange (ASOS): temperature 45.0 degrees Fahrenheit and dew point 42.0, 89 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 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 STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 700 FT ABOVE THE STATION, AT 41.3 FTEMPERATURE 45.0 FDEW POINT 42.0 FSPREAD 3.0 FRELATIVE HUMIDITY 89 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 6DATE2026-10-16IDSR-ORE-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 Orange (ASOS), 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 OREFIG. C THE WIND AT ORANGE (ASOS)PLAN, 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 FORCE73TITLEOrange (ASOS), the windSTATION REPORT · ASOS ORETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-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), 1.6 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Massachusetts

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

Near Deerfield

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

Near Deerfield

River and lake gauges