Storm Station
Sign in

Llewellyn Park, New Jersey

Community in Essex County, New Jersey

Air quality

The air at Llewellyn Park

Index 28, good, led by fine particles. Read at 11 PM from its reporting area, Northeast Urban (NJ), 7 miles off.

28Good
  • Fine particles (PM2.5)28Good-
  • Ozone17Good-

The days ahead

Good each day through Fri Oct 16, led by fine particles. Yesterday measured 56, moderate.

Smoke, the next 46 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 Llewellyn Park

None in the last 24 hours; 0.03 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.03in

Visibility

How far you can see at Llewellyn Park, the next 46 hours

Visibility stays 3 miles or more through Sat 8 PM, lowest 4 miles Fri 8 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Llewellyn Park, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.3 miles away.

measured now3 instruments

measured daily2 instruments

West Orange Twp 0.3 NNWNJ-ES-28

In a volunteer observer's own ground/1.3 mi away/397 ft/46 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Caldwell/Essex Co., drawn

The nearest airport reporting now, 6.4 mi from Llewellyn Park, New Jersey. From its report of Oct 15, 2026, 10:53 PM local time: 3 of its 6 sheets.

The sky

No cloud reported; visibility 10 mi or more.

Section of the sky over Caldwell/Essex Co., height above the station to scale: no cloud reported, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CDWFIG. A THE SKY OVER CALDWELL/ESSEX CO.SECTION, 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 REPORTEDVISIBILITY, MILES: 10 MI OR MORE0510TITLECaldwell/Essex Co., the skySTATION REPORT · ASOS CDWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CDW-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

56.0 F with a dew point of 50.0 F, 80 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,400 ft up.

Chart of the air at Caldwell/Essex Co.: temperature 56.0 degrees Fahrenheit and dew point 50.0, 80 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CDWFIG. B THE AIR AT CALDWELL/ESSEX CO.THE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 1,400 FT ABOVE THE STATION, AT 48.6 FTEMPERATURE 56.0 FDEW POINT 50.0 FSPREAD 6.0 FRELATIVE HUMIDITY 80 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 POINTTITLECaldwell/Essex Co., the airSTATION REPORT · ASOS CDWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CDW-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Caldwell/Essex Co., north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CDWFIG. C THE WIND AT CALDWELL/ESSEX CO.PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECaldwell/Essex Co., the windSTATION REPORT · ASOS CDWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CDW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Caldwell/Essex Co., in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at 0.2 MI E Of Harrison P.O. Passiac Rvr (HSNN4), 6.2 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in New Jersey

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

Near Llewellyn Park

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

Near Llewellyn Park

River and lake gauges