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Darien Downtown, Connecticut

Community in Fairfield County, Connecticut

Air quality

The air at Darien Downtown

Index 14, good, led by fine particles. Read at 2 AM from its reporting area, Bridgeport (CT), 16 miles off.

14Good
  • Fine particles (PM2.5)14Good15.6 mi
  • Ozone-14 ppb15.4 mi
  • Coarse particles (PM10)6Good15.6 mi
  • Nitrogen dioxide1Good1.3 ppb7.4 mi
  • Sulfur dioxide0Good0.1 ppb15.6 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 11, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Darien Downtown

None in the last 24 hours; 0.05 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.05in

Visibility

How far you can see at Darien Downtown, the next 43 hours

Mist or haze: visibility falls to 2 miles Fri 8 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Darien Downtown, 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

measured daily2 instruments

Darien 2.4 NCT-FR-79

In a volunteer observer's own ground/0.6 mi away/111 ft/58 ft above here

precip, snowfall, snow depth

Rank-

GreenwichGREC3

At a cooperative observer's station/8.8 mi away/361 ft/308 ft above here

snowfall, snow depth, precip, high, low

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Station report

The weather at Bridgeport/Sikorsky, drawn

The nearest airport reporting now, 18.5 mi from Darien Downtown, Connecticut. From its report of Oct 16, 2026, 1:52 AM local time: 3 of its 6 sheets.

The sky

Scattered at 3,000 ft, overcast at 8,000 ft; the ceiling is 8,000 ft; visibility 10 mi or more.

Section of the sky over Bridgeport/Sikorsky, height above the station to scale: scattered cloud with its base at 3,000 feet, overcast cloud with its base at 8,000 feet, the ceiling at 8,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BDRFIG. A THE SKY OVER BRIDGEPORT/SIKORSKYSECTION, 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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 8,000 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 3,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 8,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEBridgeport/Sikorsky, the skySTATION REPORT · ASOS BDRTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-BDR-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018, FB-SKY-013, FB-SKY-014

The air

59.0 F with a dew point of 51.0 F, 75 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up; the lowest cloud reported is at 3,000 ft.

Chart of the air at Bridgeport/Sikorsky: temperature 59.0 degrees Fahrenheit and dew point 51.0, 75 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station, against the lowest cloud reported at 3,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BDRFIG. B THE AIR AT BRIDGEPORT/SIKORSKYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00040 F50 F60 F70 FSATURATES 1,800 FT ABOVE THE STATION, AT 49.2 FLOWEST CLOUD REPORTED, SCT 3,000 FTTEMPERATURE 59.0 FDEW POINT 51.0 FSPREAD 8.0 FRELATIVE HUMIDITY 75 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 POINTTITLEBridgeport/Sikorsky, the airSTATION REPORT · ASOS BDRTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-BDR-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southeast (150 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Bridgeport/Sikorsky, north up: blowing from 150 degrees, the south southeast, at 10 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BDRFIG. C THE WIND AT BRIDGEPORT/SIKORSKYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 150°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBridgeport/Sikorsky, the windSTATION REPORT · ASOS BDRTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-BDR-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Bridgeport/Sikorsky, 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 Darien Downtown

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

Near Darien Downtown

River and lake gauges