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Belchertown, Massachusetts

Community in Hampshire County, Massachusetts

Air quality

The air at Belchertown

Index 48, good, led by fine particles. Read at 12 AM from its reporting area, Hampden-Hampshire (MA), 13 miles off.

48Good
  • Fine particles (PM2.5)48Good9.5 mi
  • Ozone14Good7 ppb9.5 mi
  • Coarse particles (PM10)4Good-
  • Nitrogen dioxide6Good6 ppb9.5 mi
  • Sulfur dioxide0Good0.4 ppb14.2 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 37, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Belchertown

None in the last 3 days, to Fri 12 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Belchertown, the next 44 hours

Mist or haze: visibility falls to 1 miles Fri 7 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Belchertown, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now4 instruments

measured daily2 instruments

Belchertown 2.5 NNWMA-HS-35

In a volunteer observer's own ground/1.7 mi away/317 ft/241 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Chicopee/Westover, drawn

The nearest airport reporting now, 8.8 mi from Belchertown, Massachusetts. From its report of Oct 15, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Broken at 21,000 ft; the ceiling is 21,000 ft; visibility 10 mi or more.

Section of the sky over Chicopee/Westover, height above the station to scale: broken cloud with its base at 21,000 feet, the ceiling at 21,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CEFFIG. A THE SKY OVER CHICOPEE/WESTOVERSECTION, 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 STATION05,00010,00015,00020,00025,00030,00035,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 21,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 21,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEChicopee/Westover, the skySTATION REPORT · ASOS CEFTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CEF-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

44.8 F with a dew point of 42.6 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 21,000 ft.

Chart of the air at Chicopee/Westover: temperature 44.8 degrees Fahrenheit and dew point 42.6, 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, against the lowest cloud reported at 21,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CEFFIG. B THE AIR AT CHICOPEE/WESTOVERTHE 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 F60 FSATURATES 500 FT ABOVE THE STATION, AT 42.1 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, BKN 21,000 FTTEMPERATURE AND DEW POINT 44.8 F, 42.6 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 POINTTITLEChicopee/Westover, the airSTATION REPORT · ASOS CEFTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CEF-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 Chicopee/Westover, 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 CEFFIG. C THE WIND AT CHICOPEE/WESTOVERPLAN, 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 FORCE73TITLEChicopee/Westover, the windSTATION REPORT · ASOS CEFTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CEF-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Chicopee/Westover, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Winsor Dam-Quabbin Rsvr (BCNM3), 3.1 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 Belchertown

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

Near Belchertown

River and lake gauges