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Bellevue, Pennsylvania

Borough in Allegheny County, Pennsylvania

Air quality

The air at Bellevue

Index 52, moderate, led by fine particles. Read at 6 AM from its reporting area, Pittsburgh (PA), 12 miles off.

52Moderate
  • Fine particles (PM2.5)52Moderate18.9 mi
  • Ozone23Good25 ppb18.9 mi

The days ahead

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

Smoke, the next 45 hours

Little smoke near the ground through Sun 2 AM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Bellevue

None in the last 24 hours; 0.55 in over the last 3 days, to Fri 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.55in

Visibility

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

Visibility stays 4 miles or more through Sun 2 AM, lowest 4 miles Fri 1 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Bellevue, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.5 miles away.

measured now4 instruments

measured daily2 instruments

Pittsburgh 6.0 NNWPA-AL-100

In a volunteer observer's own ground/1.5 mi away/1,188 ft/188 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Pittsburgh INTL, drawn

The nearest airport reporting now, 9.4 mi from Bellevue, Pennsylvania. From its report of Oct 16, 2026, 5:51 AM local time: 3 of its 6 sheets.

The sky

Scattered at 5,000 ft, broken at 15,000 ft; the ceiling is 15,000 ft; visibility 10 mi or more.

Section of the sky over Pittsburgh INTL, height above the station to scale: scattered cloud with its base at 5,000 feet, broken cloud with its base at 15,000 feet, the ceiling at 15,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PITFIG. A THE SKY OVER PITTSBURGH INTLSECTION, 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 STATION05,00010,00015,00020,00025,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTBKN 15,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 5,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 15,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPittsburgh INTL, the skySTATION REPORT · ASOS PITTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-PIT-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

72.0 F with a dew point of 65.0 F, 79 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up; the lowest cloud reported is at 5,000 ft.

Chart of the air at Pittsburgh INTL: temperature 72.0 degrees Fahrenheit and dew point 65.0, 79 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station, against the lowest cloud reported at 5,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PITFIG. B THE AIR AT PITTSBURGH INTLTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,00050 F60 F70 F80 FSATURATES 1,600 FT ABOVE THE STATION, AT 63.3 FLOWEST CLOUD REPORTED, SCT 5,000 FTTEMPERATURE 72.0 FDEW POINT 65.0 FSPREAD 7.0 FRELATIVE HUMIDITY 79 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 INTL, the airSTATION REPORT · ASOS PITTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-PIT-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (220 degrees) at 13 mph, gusting 20 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 23 mph.

Plan of the wind at Pittsburgh INTL, north up: blowing from 220 degrees, the southwest, at 13 miles an hour, gusting 20; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT PITFIG. C THE WIND AT PITTSBURGH INTLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 220°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 MPH5FRESH BREEZE19GUST, 20 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPittsburgh INTL, the windSTATION REPORT · ASOS PITTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-PIT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Emsworth Dam (EMSP1), 1.9 miles from here, read 15 Oct, 06:00. measured daily

Elsewhere in Pennsylvania

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

Near Bellevue

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

Near Bellevue

River and lake gauges