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Greenville, New Hampshire

Community in Hillsborough County, New Hampshire

Air quality

The air at Greenville

Index 31, good, led by ozone. Read at 10 PM from its reporting area, Hillsborough County (NH), 11 miles off.

31Good
  • Fine particles (PM2.5)8Good7.2 mi
  • Ozone31Good34 ppb7.2 mi
  • Coarse particles (PM10)3Good7.2 mi
  • Nitrogen dioxide6Good6 ppb22.7 mi
  • Sulfur dioxide0Good0.1 ppb7.2 mi
  • Carbon monoxide-0.2 ppm22.7 mi

The days ahead

Good each day through Fri Oct 16, led by fine particles. Yesterday measured 31, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 2 PM.

FriSat

Precipitation

What has fallen at Greenville

None in the last 24 hours; 0.46 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.46in

Visibility

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

Fog: visibility falls to 0.3 miles Fri 10 AM, under a mile for 3 hours.

FriSat

On the radar over Greenville, New HampshireReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Greenville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.

measured now4 instruments

New IpswitchNISN3

At a river or reservoir gauge/3.7 mi away/954 ft/155 ft above here

temp, wind, gust, humidity, pressure

Rank358of 385

measured daily2 instruments

GreenvilleGREN3

At a cooperative observer's station/1.2 mi away/892 ft/93 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Jaffrey Municipal, drawn

The nearest airport reporting now, 10.2 mi from Greenville, New Hampshire. From its report of Oct 15, 2026, 9:52 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Jaffrey Municipal, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AFNFIG. A THE SKY OVER JAFFREY MUNICIPALSECTION, 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 DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEJaffrey Municipal, the skySTATION REPORT · ASOS AFNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-AFN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

39.0 F with a dew point of 37.0 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up.

Chart of the air at Jaffrey Municipal: temperature 39.0 degrees Fahrenheit and dew point 37.0, 92 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AFNFIG. B THE AIR AT JAFFREY MUNICIPALTHE 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 FSATURATES 500 FT ABOVE THE STATION, AT 36.5 FTEMPERATURE AND DEW POINT 39.0 F, 37.0 FRELATIVE HUMIDITY 92 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 POINTTITLEJaffrey Municipal, the airSTATION REPORT · ASOS AFNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-AFN-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 Jaffrey Municipal, 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 AFNFIG. C THE WIND AT JAFFREY MUNICIPALPLAN, 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 FORCE73TITLEJaffrey Municipal, the windSTATION REPORT · ASOS AFNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-AFN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in New Hampshire

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

Near Greenville

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

Near Greenville

River and lake gauges