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Eighty Four, Pennsylvania

Community in Washington County, Pennsylvania

Air quality

The air at Eighty Four

Index 32, good, led by fine particles. Read at 11 PM from its reporting area, Mon Valley Area (PA), 17 miles off.

32Good
  • Fine particles (PM2.5)32Good9.1 mi
  • Ozone-6 ppb9.1 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 56, moderate.

Smoke, the next 45 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Eighty Four

None in the last 24 hours; 0.02 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.02in

Visibility

How far you can see at Eighty Four, the next 45 hours

Mist or haze: visibility falls to 3 miles Fri 3 AM.

FriSat

On the radar over Eighty Four, PennsylvaniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Eighty Four, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.8 miles away.

measured now4 instruments

measured daily2 instruments

Eighty Four 2.4 NWPA-WS-1

In a volunteer observer's own ground/2.8 mi away/1,335 ft/243 ft above here

precip, snowfall, snow depth

Rank-

CharleroiCHRP1

At a cooperative observer's station/12.1 mi away/801 ft/291 ft below here

snowfall, snow depth, precip, high, low

Rank96of 1,383

Station report

The weather at Washington County, drawn

The nearest airport reporting now, 8.8 mi from Eighty Four, Pennsylvania. From its report of Oct 15, 2026, 11:56 PM local time: 3 of its 6 sheets.

The sky

Overcast at 400 ft; the ceiling is 400 ft; visibility 3 mi.

Section of the sky over Washington County, height above the station to scale: overcast cloud with its base at 400 feet, the ceiling at 400 feet, and visibility of 3 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AFJFIG. A THE SKY OVER WASHINGTON COUNTYSECTION, 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 400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 400 FTVISIBILITY, MILES: 3 MI0510TITLEWashington County, the skySTATION REPORT · ASOS AFJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-AFJ-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 65.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 400 ft.

Chart of the air at Washington County: temperature 65.0 degrees Fahrenheit and dew point 65.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AFJFIG. B THE AIR AT WASHINGTON COUNTYTHE 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 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, OVC 400 FTTEMPERATURE AND DEW POINT 65.0 F, 65.0 FRELATIVE HUMIDITY 100 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 POINTTITLEWashington County, the airSTATION REPORT · ASOS AFJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-AFJ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (200 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Washington County, north up: blowing from 200 degrees, the south southwest, 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 AFJFIG. C THE WIND AT WASHINGTON COUNTYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 200°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWashington County, the windSTATION REPORT · ASOS AFJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-AFJ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Pennsylvania

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

Near Eighty Four

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

Near Eighty Four

River and lake gauges