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East Marianna, Pennsylvania

Community in Washington County, Pennsylvania

Air quality

The air at East Marianna

Index 20, good, led by fine particles. Read at 10 PM from its reporting area, Mon Valley Area (PA), 23 miles off.

20Good
  • Fine particles (PM2.5)20Good13.2 mi
  • Ozone-16 ppb13.2 mi

The days ahead

Good each day through Tue Oct 20, led by fine particles. Yesterday measured 42, good.

Smoke, the next 46 hours

No smoke near the ground through Mon 8 PM.

SunMon

Precipitation

What has fallen at East Marianna

0.34 in in the last 24 hours, 0.52 in over the last 3 days, to Sat 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.34in
Last 3 days
0.52in

Visibility

How far you can see at East Marianna, the next 46 hours

Visibility stays 10 miles or more through Mon 8 PM.

SunMon

On the radar over East Marianna, PennsylvaniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest East Marianna, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.1 miles away.

measured now4 instruments

measured daily2 instruments

Clarksville 2.6 NNEPA-WS-18

In a volunteer observer's own ground/3.1 mi away/1,198 ft/251 ft above here

precip, snowfall, snow depth

Rank-

WaynesburgWYNP1

At a cooperative observer's station/9.4 mi away/938 ft/9 ft below here

snowfall, snow depth, precip, high, low

Rank237of 1,397

Station report

The weather at Washington County, drawn

The nearest airport reporting now, 13.1 mi from East Marianna, Pennsylvania. From its report of Oct 17, 2026, 9:56 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 Washington County, 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 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEWashington County, the skySTATION REPORT · ASOS AFJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-18IDSR-AFJ-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

37.0 F with a dew point of 35.0 F, 92 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up.

Chart of the air at Washington County: temperature 37.0 degrees Fahrenheit and dew point 35.0, 92 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station; 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 STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 500 FT ABOVE THE STATION, AT 34.5 FTEMPERATURE AND DEW POINT 37.0 F, 35.0 FRELATIVE HUMIDITY 92 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 6DATE2026-10-18IDSR-AFJ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Washington County, 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 AFJFIG. C THE WIND AT WASHINGTON COUNTYPLAN, 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 FORCE73TITLEWashington County, the windSTATION REPORT · ASOS AFJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-18IDSR-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

0in

Snow on the ground

Measured at Waynesburg (WYNP1), 9.4 miles from here, read 17 Oct, 07:00. measured daily

Elsewhere in Pennsylvania

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

Near East Marianna

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

Near East Marianna

River and lake gauges