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Big Run, Pennsylvania

Borough in Jefferson County, Pennsylvania

Air quality

The air at Big Run

Index 17, good, led by fine particles. Read at 3 AM from its reporting area, Indiana County (PA), 23 miles off.

17Good
  • Fine particles (PM2.5)17Good21.1 mi
  • Ozone15Good-

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 22, good.

Smoke, the next 41 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Big Run

0.06 in in the last 24 hours, 0.11 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.11in

Visibility

How far you can see at Big Run, the next 41 hours

Visibility stays 4 miles or more through Sat 8 PM, lowest 4 miles Fri 4 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Big Run, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.6 miles away.

measured now4 instruments

measured daily2 instruments

Punxsutawney 5.9 EPA-JF-8

In a volunteer observer's own ground/2.6 mi away/1,713 ft/351 ft above here

precip, snowfall, snow depth

Rank-

Dubois 2SDJBP1

At a cooperative observer's station/10.7 mi away/1,614 ft/252 ft above here

snowfall, snow depth, precip, high, low

Rank1,265of 1,383

Station report

The weather at Du Bois (AWOS), drawn

The nearest airport reporting now, 14.5 mi from Big Run, Pennsylvania. From its report of Oct 16, 2026, 3:01 AM local time: 3 of its 6 sheets.

The sky

Overcast at 200 ft; the ceiling is 200 ft; visibility 3 mi.

Section of the sky over Du Bois (AWOS), height above the station to scale: overcast cloud with its base at 200 feet, the ceiling at 200 feet, and visibility of 3 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DUJFIG. A THE SKY OVER DU BOIS (AWOS)SECTION, 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 200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 200 FTVISIBILITY, MILES: 3 MI0510TITLEDu Bois (AWOS), the skySTATION REPORT · ASOS DUJTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-DUJ-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

59.0 F with a dew point of 58.0 F, 96 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 200 ft.

Chart of the air at Du Bois (AWOS): temperature 59.0 degrees Fahrenheit and dew point 58.0, 96 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT DUJFIG. B THE AIR AT DU BOIS (AWOS)THE 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 200 FT ABOVE THE STATION, AT 57.7 FLOWEST CLOUD REPORTED, OVC 200 FTTEMPERATURE AND DEW POINT 59.0 F, 58.0 FRELATIVE HUMIDITY 96 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 POINTTITLEDu Bois (AWOS), the airSTATION REPORT · ASOS DUJTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-DUJ-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

At 6 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 18 mph.

Plan of the wind at Du Bois (AWOS), north up: 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 DUJFIG. C THE WIND AT DU BOIS (AWOS)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONDIRECTION NOT REPORTEDBEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEDu Bois (AWOS), the windSTATION REPORT · ASOS DUJTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-DUJ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Du Bois (AWOS), in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Dubois 2S (DJBP1), 10.7 miles from here, read 12 Oct, 06:30. measured daily

Elsewhere in Pennsylvania

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

Near Big Run

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

Near Big Run

River and lake gauges