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Higganum, Connecticut

Community in Middlesex County, Connecticut

Air quality

The air at Higganum

Index 27, good, led by fine particles. Read at 12 AM from its reporting area, Hartford (CT), 21 miles off.

27Good
  • Fine particles (PM2.5)27Good20.4 mi
  • Ozone6Good5 ppb20.7 mi
  • Coarse particles (PM10)8Good20.4 mi
  • Nitrogen dioxide12Good13.4 ppb20.4 mi
  • Sulfur dioxide0Good0.3 ppb22 mi
  • Carbon monoxide-0.3 ppm20.4 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 48, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Higganum

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 Higganum, the next 44 hours

Visibility stays 4 miles or more through Sat 8 PM, lowest 4 miles Fri 12 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Higganum, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now4 instruments

ChesterSNC

At an airfield/8.2 mi away/416 ft/259 ft above here

temp, wind, gust, visibility, precip, pressure

Rank181of 375

measured daily2 instruments

Higganum 0.7 NCT-MD-23

In a volunteer observer's own ground/0.6 mi away/98 ft/59 ft below here

precip, snowfall, snow depth

Rank19of 375

GuilfordGULC3

At a cooperative observer's station/15.4 mi away/24 ft/133 ft below here

snowfall, snow depth, precip, high, low

Rank28of 375

Station report

The weather at Chester, drawn

The nearest airport reporting now, 8.2 mi from Higganum, Connecticut. From its report of Oct 16, 2026, 12:35 AM 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 Chester, 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 SNCFIG. A THE SKY OVER CHESTERSECTION, 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 MORE0510TITLEChester, the skySTATION REPORT · ASOS SNCTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-SNC-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

51.8 F with a dew point of 50.0 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at Chester: temperature 51.8 degrees Fahrenheit and dew point 50.0, 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; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SNCFIG. B THE AIR AT CHESTERTHE 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 FSATURATES 400 FT ABOVE THE STATION, AT 49.5 FTEMPERATURE AND DEW POINT 51.8 F, 50.0 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 POINTTITLEChester, the airSTATION REPORT · ASOS SNCTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-SNC-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 Chester, 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 SNCFIG. C THE WIND AT CHESTERPLAN, 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 FORCE73TITLEChester, the windSTATION REPORT · ASOS SNCTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-SNC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Connecticut

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

Near Higganum

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

Near Higganum

River and lake gauges