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Upper Greenwood Lake, New Jersey

Community in Passaic County, New Jersey

Air quality

The air at Upper Greenwood Lake

Index 39, good, led by fine particles. Read at 1 PM from its reporting area, North Central (NJ), 31 miles off.

39Good
  • Fine particles (PM2.5)39Good18.3 mi
  • Ozone19Good16 ppb10.6 mi

The days ahead

Highest 55, moderate, Mon Oct 19, led by ozone. Yesterday measured 28, good.

Smoke, the next 44 hours

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

FriSatSun

Precipitation

What has fallen at Upper Greenwood Lake

0.09 in in the last 24 hours, and none in the 2 days before, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.09in
Last 3 days
0.09in

Visibility

How far you can see at Upper Greenwood Lake, the next 44 hours

Visibility stays 7 miles or more through Sun 8 AM, lowest 8 miles Fri 1 PM.

FriSatSun

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

What is measuring near here

The 5 instruments nearest Upper Greenwood Lake, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.4 miles away.

measured now3 instruments

measured daily2 instruments

Vernon Twp 2.3 ENJ-SS-4

In a volunteer observer's own ground/3.3 mi away/1,245 ft/65 ft above here

precip, snowfall, snow depth

Rank-

Highland LakesHGHN4

At a cooperative observer's station/4.5 mi away/1,339 ft/159 ft above here

snowfall, snow depth, precip, high, low

Rank14of 737

Station report

The weather at Sussex_Airport, drawn

The nearest airport reporting now, 12.8 mi from Upper Greenwood Lake, New Jersey. From its report of Oct 16, 2026, 12:53 PM local time: 3 of its 5 sheets.

The sky

Overcast at 700 ft; the ceiling is 700 ft; visibility 10 mi or more.

Section of the sky over Sussex_Airport, height above the station to scale: overcast cloud with its base at 700 feet, the ceiling at 700 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FWNFIG. A THE SKY OVER SUSSEX_AIRPORTSECTION, 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 SHEETOVC 700 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 700 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESussex_Airport, the skySTATION REPORT · ASOS FWNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-FWN-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

65.0 F with a dew point of 60.0 F, 84 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 700 ft.

Chart of the air at Sussex_Airport: temperature 65.0 degrees Fahrenheit and dew point 60.0, 84 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station, against the lowest cloud reported at 700 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FWNFIG. B THE AIR AT SUSSEX_AIRPORTTHE 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 FSATURATES 1,200 FT ABOVE THE STATION, AT 58.8 FLOWEST CLOUD REPORTED, OVC 700 FTTEMPERATURE 65.0 FDEW POINT 60.0 FSPREAD 5.0 FRELATIVE HUMIDITY 84 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 POINTTITLESussex_Airport, the airSTATION REPORT · ASOS FWNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-FWN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 420 ft above sea level, 2 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.47 inHg and the temperature at 57.5 F; the station's altimeter setting of 29.74 inHg means its barometer reads 29.29 inHg; it reports 65.0 F, 7.5 F warmer than standard.

Section from sea level of where Sussex_Airport stands in the atmosphere, height to scale: the station 420 feet above sea level with 2 per cent of the air below it; the standard atmosphere's pressure there, 29.47 inches of mercury, and temperature, 57.5 degrees Fahrenheit; the altimeter setting of 29.74 and the station pressure it means, 29.29.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FWNFIG. D WHERE SUSSEX_AIRPORT STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERESUSSEX_AIRPORT2 PER CENT OF THE AIR BELOW IT420 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE29.47 inHgSTANDARD TEMPERATURE HERE57.5 FALTIMETER SETTING, REPORTED29.74 inHgITS BAROMETER READS29.29 inHgTEMPERATURE, REPORTED65.0 FTITLESussex_Airport, the columnSTATION REPORT · ASOS FWNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-FWN-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Sussex_Airport, in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Highland Lakes (HGHN4), 4.5 miles from here, read 16 Oct, 05:30. measured daily

Elsewhere in New Jersey

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

Near Upper Greenwood Lake

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

Near Upper Greenwood Lake

River and lake gauges