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Sewaren, New Jersey

Community in Middlesex County, New Jersey

Air quality

The air at Sewaren

Index 52, moderate, led by fine particles. Read at 3 PM from its reporting area, Northeast Urban (NJ), 10 miles off.

52Moderate
  • Fine particles (PM2.5)52Moderate3.2 mi
  • Ozone17Good22 ppb3.5 mi
  • Nitrogen dioxide14Good15 ppb6.2 mi
  • Sulfur dioxide1Good1 ppb6.2 mi
  • Carbon monoxide-0.3 ppm6.2 mi

The days ahead

Highest 55, moderate, Mon Oct 19, led by fine particles. Yesterday measured 24, good.

Smoke, the next 41 hours

No smoke near the ground through Sun 8 AM.

FriSatSun

Precipitation

What has fallen at Sewaren

0.04 in in the last 24 hours, and none in the 2 days before, to Fri 3 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.04in

Visibility

How far you can see at Sewaren, the next 41 hours

Fog: visibility falls to 0.8 miles Fri 7 PM, under a mile for 1 hour.

FriSatSun

On the radar over Sewaren, New JerseyReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Sewaren, 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 now3 instruments

LindenLDJ

At an airfield/4.4 mi away/23 ft/8 ft above here

temp, wind, gust, visibility, precip, pressure

Rank481of 737

measured daily2 instruments

New BrunswickNBRN4

At a cooperative observer's station/11.0 mi away/82 ft/67 ft above here

snowfall, snow depth, precip, high, low

Rank431of 737

Station report

The weather at Linden, drawn

The nearest airport reporting now, 4.4 mi from Sewaren, New Jersey. From its report of Oct 16, 2026, 4:15 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 Linden, 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 LDJFIG. A THE SKY OVER LINDENSECTION, 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 MORE0510TITLELinden, the skySTATION REPORT · ASOS LDJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-LDJ-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

74.3 F with a dew point of 65.0 F, 73 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,200 ft up.

Chart of the air at Linden: temperature 74.3 degrees Fahrenheit and dew point 65.0, 73 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LDJFIG. B THE AIR AT LINDENTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 F80 F90 FSATURATES 2,200 FT ABOVE THE STATION, AT 62.8 FTEMPERATURE 74.3 FDEW POINT 65.0 FSPREAD 9.3 FRELATIVE HUMIDITY 73 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 POINTTITLELinden, the airSTATION REPORT · ASOS LDJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-LDJ-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (270 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Linden, north up: blowing from 270 degrees, the west, at 6 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LDJFIG. C THE WIND AT LINDENPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 270°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELinden, the windSTATION REPORT · ASOS LDJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-LDJ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at New Brunswick (NBRN4), 11.0 miles from here, read 16 Oct, 08:00. measured daily

Elsewhere in New Jersey

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

Near Sewaren

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

Near Sewaren

River and lake gauges