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Smithton, Pennsylvania

Borough in Westmoreland County, Pennsylvania

Air quality

The air at Smithton

Index 57, moderate, led by fine particles. Read at 12 PM from its reporting area, Mon Valley Area (PA), 13 miles off.

57Moderate
  • Fine particles (PM2.5)57Moderate8.6 mi
  • Ozone-36 ppb8.6 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 29, good.

Smoke, the next 45 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 Smithton

None in the last 24 hours; 0.06 in over the last 3 days, to Fri 11 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.06in

Visibility

How far you can see at Smithton, the next 45 hours

Mist or haze: visibility falls to 2 miles Fri 11 PM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Smithton, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.

measured now4 instruments

measured daily2 instruments

Smithton 2.5 WSWPA-WT-64

In a volunteer observer's own ground/2.5 mi away/1,070 ft/263 ft above here

precip, snowfall, snow depth

Rank-

DonoraDRAP1

At a cooperative observer's station/6.8 mi away/771 ft/36 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Connellsville, drawn

The nearest airport reporting now, 14.2 mi from Smithton, Pennsylvania. From its report of Oct 16, 2026, 12:15 PM local time: 3 of its 6 sheets.

The sky

Scattered at 3,100 ft, broken at 3,800 ft, overcast at 6,000 ft; the ceiling is 3,800 ft; visibility 10 mi or more.

Section of the sky over Connellsville, height above the station to scale: scattered cloud with its base at 3,100 feet, broken cloud with its base at 3,800 feet, overcast cloud with its base at 6,000 feet, the ceiling at 3,800 feet, 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 STATION02,5005,0007,50010,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 6,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 3,800 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 3,100 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 3,800 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEConnellsville, the skySTATION REPORT · ASOS VVSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-VVS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

75.7 F with a dew point of 65.0 F, 69 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,500 ft up; the lowest cloud reported is at 3,100 ft.

Chart of the air at Connellsville: temperature 75.7 degrees Fahrenheit and dew point 65.0, 69 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,500 feet above the station, against the lowest cloud reported at 3,100 feet; 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 STATION01,0002,0003,0004,00050 F60 F70 F80 F90 FSATURATES 2,500 FT ABOVE THE STATION, AT 62.5 FLOWEST CLOUD REPORTED, SCT 3,100 FTTEMPERATURE 75.7 FDEW POINT 65.0 FSPREAD 10.7 FRELATIVE HUMIDITY 69 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 6DATE2026-10-16IDSR-VVS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (230 degrees) at 15 mph, gusting 22 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 23 mph.

Plan of the wind at Connellsville, north up: blowing from 230 degrees, the southwest, at 15 miles an hour, gusting 22; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, 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 STATIONFROM 230°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE19GUST, 22 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEConnellsville, the windSTATION REPORT · ASOS VVSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-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

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Snow on the ground

Elsewhere in Pennsylvania

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

Near Smithton

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

Near Smithton

River and lake gauges