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Lemont Furnace, Pennsylvania

Community in Fayette County, Pennsylvania

Air quality

The air at Lemont Furnace

Index 14, good, led by ozone. Read at 11 AM from its reporting area, Morgantown (WV), 23 miles off.

14Good
  • Fine particles (PM2.5)-20.8 mi
  • Ozone14Good7 ppb20.8 mi

The days ahead

Yesterday measured 31, good.

Smoke, the next 46 hours

No smoke near the ground through Wed 8 AM.

MonTueWed

Precipitation

What has fallen at Lemont Furnace

None in the last 24 hours; 0.59 in over the last 3 days, to Mon 10 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.59in

Visibility

How far you can see at Lemont Furnace, the next 46 hours

Visibility stays 10 miles or more through Wed 8 AM.

MonTueWed

On the radar over Lemont Furnace, PennsylvaniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Lemont Furnace, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.9 miles away.

measured now4 instruments

measured daily2 instruments

Hopwood 1.2 NEPA-FY-18

In a volunteer observer's own ground/1.9 mi away/1,085 ft/99 ft below here

precip, snowfall, snow depth

Rank-

ConnellsvilleCNLP1

At a cooperative observer's station/6.5 mi away/899 ft/285 ft below here

snowfall, snow depth, precip, high, low

Rank657of 1,389

Station report

The weather at Connellsville, drawn

The nearest airport reporting now, 3.3 mi from Lemont Furnace, Pennsylvania. From its report of Oct 19, 2026, 11:35 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 Connellsville, 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 VVSFIG. A THE SKY OVER CONNELLSVILLESECTION, 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 MORE0510TITLEConnellsville, the skySTATION REPORT · ASOS VVSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-19IDSR-VVS-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

58.5 F with a dew point of 37.6 F, 46 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,800 ft up.

Chart of the air at Connellsville: temperature 58.5 degrees Fahrenheit and dew point 37.6, 46 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,800 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT VVSFIG. B THE AIR AT CONNELLSVILLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00020 F30 F40 F50 F60 F70 FSATURATES 4,800 FT ABOVE THE STATION, AT 33.1 FTEMPERATURE 58.5 FDEW POINT 37.6 FSPREAD 20.9 FRELATIVE HUMIDITY 46 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 POINTTITLEConnellsville, the airSTATION REPORT · ASOS VVSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-19IDSR-VVS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Connellsville, 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 VVSFIG. C THE WIND AT CONNELLSVILLEPLAN, 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 FORCE73TITLEConnellsville, the windSTATION REPORT · ASOS VVSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-19IDSR-VVS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Connellsville (CNLP1), 6.5 miles from here, read 19 Oct, 05:00. measured daily

Elsewhere in Pennsylvania

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

Near Lemont Furnace

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

Near Lemont Furnace

River and lake gauges