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Corsica, Pennsylvania

Borough in Jefferson County, Pennsylvania

Air quality

The air at Corsica

Index 42, good, led by fine particles. Read at 8 AM from its reporting area, Indiana County (PA), 35 miles off.

42Good
  • Fine particles (PM2.5)42Good-
  • Ozone28Good-

The days ahead

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

Visibility

How far you can see at Corsica, the next 43 hours

Mist or haze: visibility falls to 3 miles Fri 2 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Corsica, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.0 miles away.

measured now4 instruments

measured daily2 instruments

Corsica 0.1 WSWPA-JF-12

In a volunteer observer's own ground/0.0 mi away/1,605 ft/10 ft above here

precip, snowfall, snow depth

Rank-

Piney LakeCLAP1

At a cooperative observer's station/12.1 mi away/1,132 ft/463 ft below here

snowfall, snow depth, precip, high, low

Rank938of 1,383

Station report

The weather at Du Bois (AWOS), drawn

The nearest airport reporting now, 15.8 mi from Corsica, Pennsylvania. From its report of Oct 16, 2026, 8:17 AM local time: 3 of its 6 sheets.

The sky

Scattered at 1,400 ft, broken at 4,100 ft, broken at 7,500 ft; the ceiling is 4,100 ft; visibility 10 mi or more.

Section of the sky over Du Bois (AWOS), height above the station to scale: scattered cloud with its base at 1,400 feet, broken cloud with its base at 4,100 feet, broken cloud with its base at 7,500 feet, the ceiling at 4,100 feet, and visibility of 10 mi or more.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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 7,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 4,100 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 1,400 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 4,100 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEDu 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, FB-SKY-013, FB-SKY-014

The air

68.0 F with a dew point of 65.0 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 1,400 ft.

Chart of the air at Du Bois (AWOS): temperature 68.0 degrees Fahrenheit and dew point 65.0, 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 1,400 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 F80 FSATURATES 700 FT ABOVE THE STATION, AT 64.2 FLOWEST CLOUD REPORTED, SCT 1,400 FTTEMPERATURE 68.0 FDEW POINT 65.0 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 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

From the southwest (220 degrees) at 14 mph, gusting 22 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 36 mph.

Plan of the wind at Du Bois (AWOS), north up: blowing from 220 degrees, the southwest, at 14 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 DUJFIG. C THE WIND AT DU BOIS (AWOS)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 220°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 14 MPH5FRESH BREEZE19GUST, 22 MPH6STRONG 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 Piney Lake (CLAP1), 12.1 miles from here, read 14 Oct, 07:00. measured daily

Elsewhere in Pennsylvania

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

Near Corsica

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

Near Corsica

River and lake gauges