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Jefferson Hills, Pennsylvania

Borough in Allegheny County, Pennsylvania

Air quality

The air at Jefferson Hills

Index 14, good, led by fine particles. Read at 4 PM from its reporting area, Mon Valley Area (PA), 4 miles off.

14Good
  • Fine particles (PM2.5)14Good4.1 mi
  • Ozone-20 ppb10.8 mi

The days ahead

Good each day through Tue Oct 20, led by fine particles. Yesterday measured 29, good.

Smoke, the next 40 hours

No smoke near the ground through Sun 8 AM.

FriSatSun

Precipitation

What has fallen at Jefferson Hills

0.51 in in the last 24 hours, 0.84 in over the last 3 days, to Fri 4 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.51in
Last 3 days
0.84in

Visibility

How far you can see at Jefferson Hills, the next 46 hours

Visibility stays 3 miles or more through Sun 2 PM, lowest 3 miles Fri 11 PM.

FriSatSun

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

What is measuring near here

The 6 instruments nearest Jefferson Hills, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.2 miles away.

measured now4 instruments

measured daily2 instruments

Braddock Lock And DamBDDP1

At a dam/7.9 mi away/732 ft/391 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Pittsburgh/Alleghen, drawn

The nearest airport reporting now, 4.1 mi from Jefferson Hills, Pennsylvania. From its report of Oct 16, 2026, 4:53 PM local time: 3 of its 6 sheets.

The sky

Scattered at 900 ft, overcast at 7,000 ft; the ceiling is 7,000 ft; visibility 10 mi or more.

Section of the sky over Pittsburgh/Alleghen, height above the station to scale: scattered cloud with its base at 900 feet, overcast cloud with its base at 7,000 feet, the ceiling at 7,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AGCFIG. A THE SKY OVER PITTSBURGH/ALLEGHENSECTION, 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 FTOVC 7,000 FTOVERCAST, 8 EIGHTHS OF THE SKYSCT 900 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 7,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPittsburgh/Alleghen, the skySTATION REPORT · ASOS AGCTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-AGC-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

58.0 F with a dew point of 55.0 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 Pittsburgh/Alleghen: temperature 58.0 degrees Fahrenheit and dew point 55.0, 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 AGCFIG. B THE AIR AT PITTSBURGH/ALLEGHENTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 700 FT ABOVE THE STATION, AT 54.3 FLOWEST CLOUD REPORTED, SCT 900 FTTEMPERATURE 58.0 FDEW POINT 55.0 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 POINTTITLEPittsburgh/Alleghen, the airSTATION REPORT · ASOS AGCTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-AGC-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (260 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 41 mph.

Plan of the wind at Pittsburgh/Alleghen, north up: blowing from 260 degrees, the west, at 10 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AGCFIG. C THE WIND AT PITTSBURGH/ALLEGHENPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 260°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPittsburgh/Alleghen, the windSTATION REPORT · ASOS AGCTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-AGC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Pittsburgh/Alleghen, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Braddock Lock And Dam (BDDP1), 7.9 miles from here, read 16 Oct, 06:00. measured daily

Elsewhere in Pennsylvania

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

Near Jefferson Hills

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

Near Jefferson Hills

River and lake gauges