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Thomaston, Connecticut

Community in Litchfield County, Connecticut

Air quality

The air at Thomaston

Index 29, good, led by fine particles. Read at 1 AM from its reporting area, Waterbury (CT), 8 miles off.

29Good
  • Fine particles (PM2.5)29Good8.5 mi
  • Ozone-23 ppb16.1 mi
  • Coarse particles (PM10)12Good8.5 mi
  • Nitrogen dioxide13Good14.6 ppb21.8 mi
  • Sulfur dioxide0Good0 ppb16.1 mi
  • Carbon monoxide-0.2 ppm16.1 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 15, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Thomaston

None in the last 3 days, to Fri 1 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 Thomaston, the next 43 hours

Mist or haze: visibility falls to 2 miles Fri 10 AM.

FriSat

On the radar over Thomaston, ConnecticutReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Thomaston, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

Plainville4B8

At an airfield/10.9 mi away/200 ft/191 ft below here

temp, wind, gust, visibility, precip, pressure

Rank183of 375

measured daily2 instruments

Thomaston 0.6 ECT-LT-54

In a volunteer observer's own ground/0.7 mi away/577 ft/186 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Plainville, drawn

The nearest airport reporting now, 10.9 mi from Thomaston, Connecticut. From its report of Oct 16, 2026, 12:55 AM local time: 3 of its 6 sheets.

The sky

Broken at 12,000 ft; the ceiling is 12,000 ft; visibility 10 mi or more.

Section of the sky over Plainville, height above the station to scale: broken cloud with its base at 12,000 feet, the ceiling at 12,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 4B8FIG. A THE SKY OVER PLAINVILLESECTION, 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 STATION02,5005,0007,50010,00012,50015,00017,50020,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 12,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPlainville, the skySTATION REPORT · ASOS 4B8TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-4B8-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

48.0 F with a dew point of 46.4 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up; the lowest cloud reported is at 12,000 ft.

Chart of the air at Plainville: temperature 48.0 degrees Fahrenheit and dew point 46.4, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station, against the lowest cloud reported at 12,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 4B8FIG. B THE AIR AT PLAINVILLETHE 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 400 FT ABOVE THE STATION, AT 46.0 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, BKN 12,000 FTTEMPERATURE AND DEW POINT 48.0 F, 46.4 FRELATIVE HUMIDITY 94 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 POINTTITLEPlainville, the airSTATION REPORT · ASOS 4B8TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-4B8-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Plainville, 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 4B8FIG. C THE WIND AT PLAINVILLEPLAN, 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 FORCE73TITLEPlainville, the windSTATION REPORT · ASOS 4B8TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-4B8-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Collinsville - Nepaug Rsvr (BRLC3), 11.1 miles from here, read 6 Oct, 07:00. measured daily

Elsewhere in Connecticut

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

Near Thomaston

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

Near Thomaston

River and lake gauges