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Greenville, Pennsylvania

Borough in Mercer County, Pennsylvania

Air quality

The air at Greenville

Index 39, good, led by fine particles. Read at 11 PM from its reporting area, Mercer County (PA), 14 miles off.

39Good
  • Fine particles (PM2.5)39Good13.9 mi
  • Ozone26Good12 ppb13.9 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 31, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Greenville

None in the last 24 hours; 0.04 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
0.04in

Visibility

How far you can see at Greenville, the next 46 hours

Visibility stays 5 miles or more through Sat 8 PM, lowest 5 miles Fri 12 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Greenville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

MeadvilleGKJ

At an airfield/17.7 mi away/1,404 ft/441 ft above here

temp, wind, gust, visibility, precip, pressure

Rank7of 1,383

measured daily2 instruments

Greenville 0.5 EPA-MR-6

In a volunteer observer's own ground/0.5 mi away/1,027 ft/64 ft above here

precip, snowfall, snow depth

Rank-

PymatuningJMSP1

At a cooperative observer's station/7.9 mi away/1,017 ft/54 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Meadville, drawn

The nearest airport reporting now, 17.7 mi from Greenville, Pennsylvania. From its report of Oct 15, 2026, 11:16 PM local time: 3 of its 6 sheets.

The sky

Overcast at 900 ft; the ceiling is 900 ft; visibility 10 mi or more.

Section of the sky over Meadville, height above the station to scale: overcast cloud with its base at 900 feet, the ceiling at 900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GKJFIG. A THE SKY OVER MEADVILLESECTION, 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 900 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMeadville, the skySTATION REPORT · ASOS GKJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-GKJ-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

62.0 F with a dew point of 59.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up; the lowest cloud reported is at 900 ft.

Chart of the air at Meadville: temperature 62.0 degrees Fahrenheit and dew point 59.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station, against the lowest cloud reported at 900 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GKJFIG. B THE AIR AT MEADVILLETHE 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 FSATURATES 700 FT ABOVE THE STATION, AT 58.3 FLOWEST CLOUD REPORTED, OVC 900 FTTEMPERATURE 62.0 FDEW POINT 59.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLEMeadville, the airSTATION REPORT · ASOS GKJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-GKJ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (170 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Meadville, north up: blowing from 170 degrees, the south, at 7 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 GKJFIG. C THE WIND AT MEADVILLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 170°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMeadville, the windSTATION REPORT · ASOS GKJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-GKJ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Meadville, 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 Greenville

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

Near Greenville

River and lake gauges