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Northwest Harbor, New York

Community in Suffolk County, New York

Air quality

The air at Northwest Harbor

Index 14, good, led by fine particles. Read at 2 AM from its reporting area, New London-Groton (CT), 25 miles off.

14Good
  • Fine particles (PM2.5)14Good-
  • Coarse particles (PM10)6Good-

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 10, good.

Smoke, the next 43 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Northwest Harbor

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 Northwest Harbor, the next 43 hours

Dense fog: visibility falls to 0.1 miles Fri 6 PM, under a mile for 3 hours.

FriSat

On the radar over Northwest Harbor, New YorkReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Northwest Harbor, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.1 miles away.

measured now3 instruments

measured daily2 instruments

BridgehamptonBDGN6

At a cooperative observer's station/6.2 mi away/36 ft/28 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at East Hampton, drawn

The nearest airport reporting now, 3.4 mi from Northwest Harbor, New York. From its report of Oct 16, 2026, 2:15 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 East Hampton, 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 JPXFIG. A THE SKY OVER EAST HAMPTONSECTION, 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 MORE0510TITLEEast Hampton, the skySTATION REPORT · ASOS JPXTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-JPX-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

57.2 F with a dew point of 45.7 F, 65 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,600 ft up.

Chart of the air at East Hampton: temperature 57.2 degrees Fahrenheit and dew point 45.7, 65 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,600 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JPXFIG. B THE AIR AT EAST HAMPTONTHE 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 2,600 FT ABOVE THE STATION, AT 43.2 FTEMPERATURE 57.2 FDEW POINT 45.7 FSPREAD 11.5 FRELATIVE HUMIDITY 65 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 POINTTITLEEast Hampton, the airSTATION REPORT · ASOS JPXTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-JPX-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 East Hampton, 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 JPXFIG. C THE WIND AT EAST HAMPTONPLAN, 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 FORCE73TITLEEast Hampton, the windSTATION REPORT · ASOS JPXTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-JPX-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in New York

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

Near Northwest Harbor

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

Near Northwest Harbor

River and lake gauges