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Old Hill, Connecticut

Community in Fairfield County, Connecticut

Air quality

The air at Old Hill

Index 15, good, led by fine particles. Read at 11 PM from its reporting area, Bridgeport (CT), 10 miles off.

15Good
  • Fine particles (PM2.5)15Good9.2 mi
  • Ozone-12 ppb21.6 mi
  • Coarse particles (PM10)6Good9.2 mi
  • Nitrogen dioxide1Good1.3 ppb2.8 mi
  • Sulfur dioxide0Good0 ppb9.2 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 53, moderate.

Smoke, the next 45 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Old Hill

None in the last 24 hours; 0.02 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.02in

Visibility

How far you can see at Old Hill, the next 45 hours

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

FriSat

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

What is measuring near here

The 6 instruments nearest Old Hill, 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

BridgeportNDBC-BRHC3

At a river or reservoir gauge/10.2 mi away/-/- ft from here

temp, wind, gust, humidity, pressure

Rank331of 375

measured daily2 instruments

Westport 1.6 NNWCT-FR-115

In a volunteer observer's own ground/0.7 mi away/37 ft/71 ft below here

precip, snowfall, snow depth

Rank-

GreenwichGREC3

At a cooperative observer's station/14.4 mi away/361 ft/253 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Bridgeport/Sikorsky, drawn

The nearest airport reporting now, 12.8 mi from Old Hill, Connecticut. From its report of Oct 15, 2026, 11:52 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 Bridgeport/Sikorsky, 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 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 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 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

The air

58.0 F with a dew point of 47.0 F, 67 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,500 ft up.

Chart of the air at Bridgeport/Sikorsky: temperature 58.0 degrees Fahrenheit and dew point 47.0, 67 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,500 feet above the station; 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 STATION01,0002,0003,0004,00030 F40 F50 F60 F70 FSATURATES 2,500 FT ABOVE THE STATION, AT 44.5 FTEMPERATURE 58.0 FDEW POINT 47.0 FSPREAD 11.0 FRELATIVE HUMIDITY 67 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 (170 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 16 mph.

Plan of the wind at Bridgeport/Sikorsky, north up: blowing from 170 degrees, the south, 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 170°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 Old Hill

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

Near Old Hill

River and lake gauges