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Mastic, New York

Community in Suffolk County, New York

Air quality

The air at Mastic

Index 21, good, led by fine particles. Read at 8 AM from its reporting area, Bridgeport (CT), 32 miles off.

21Good
  • Fine particles (PM2.5)21Good11 mi
  • Ozone-21 ppb11 mi
  • Coarse particles (PM10)9Good-

The days ahead

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

Smoke, the next 43 hours

Little smoke near the ground through Sun 2 AM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Mastic

None in the last 3 days, to Fri 7 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 Mastic, the next 43 hours

Dense fog: visibility falls to 0.1 miles Fri 5 PM, under a mile for 4 hours.

FriSat

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

What is measuring near here

The 6 instruments nearest Mastic, 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

measured daily2 instruments

Mastic 0.7 SSWNY-SF-108

In a volunteer observer's own ground/0.7 mi away/42 ft/8 ft above here

precip, snowfall, snow depth

Rank-

Upton NWSOKXN6

At a cooperative observer's station/5.2 mi away/101 ft/67 ft above here

snowfall, snow depth, precip, high, low

Rank32of 1,432

Station report

The weather at Brookhaven Airport/Shirley, drawn

The nearest airport reporting now, 1.7 mi from Mastic, New York. From its report of Oct 16, 2026, 7:56 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 2,600 ft, broken at 3,400 ft, overcast at 7,000 ft; the ceiling is 3,400 ft; visibility 10 mi or more.

Section of the sky over Brookhaven Airport/Shirley, height above the station to scale: a few clouds cloud with its base at 2,600 feet, broken cloud with its base at 3,400 feet, overcast cloud with its base at 7,000 feet, the ceiling at 3,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HWVFIG. A THE SKY OVER BROOKHAVEN AIRPORT/SHIRLEYSECTION, 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 7,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 3,400 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 2,600 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 3,400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEBrookhaven Airport/Shirley, the skySTATION REPORT · ASOS HWVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HWV-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

63.0 F with a dew point of 60.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 2,600 ft.

Chart of the air at Brookhaven Airport/Shirley: temperature 63.0 degrees Fahrenheit and dew point 60.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 2,600 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HWVFIG. B THE AIR AT BROOKHAVEN AIRPORT/SHIRLEYTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00050 F60 F70 FSATURATES 700 FT ABOVE THE STATION, AT 59.3 FLOWEST CLOUD REPORTED, FEW 2,600 FTTEMPERATURE 63.0 FDEW POINT 60.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLEBrookhaven Airport/Shirley, the airSTATION REPORT · ASOS HWVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HWV-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (170 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 21 mph.

Plan of the wind at Brookhaven Airport/Shirley, north up: blowing from 170 degrees, the south, at 8 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 HWVFIG. C THE WIND AT BROOKHAVEN AIRPORT/SHIRLEYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 170°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBrookhaven Airport/Shirley, the windSTATION REPORT · ASOS HWVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HWV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Brookhaven Airport/Shirley, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Upton NWS (OKXN6), 5.2 miles from here, read 15 Oct, 07:00. measured daily

Elsewhere in New York

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

Near Mastic

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

Near Mastic

River and lake gauges