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Seward, Pennsylvania

Borough in Westmoreland County, Pennsylvania

Air quality

The air at Seward

Index 21, good, led by fine particles. Read at 11 PM from its reporting area, Johnstown (PA), 8 miles off.

21Good
  • Fine particles (PM2.5)21Good8.8 mi
  • Ozone11Good12 ppb8.8 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 47, good.

Smoke, the next 45 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Seward

0.01 in in the last 24 hours, 0.74 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.01in
Last 3 days
0.74in

Visibility

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

Mist or haze: visibility falls to 2 miles Fri 4 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Seward, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

measured daily2 instruments

IndianaINDP1

At a cooperative observer's station/13.7 mi away/1,171 ft/35 ft above here

snowfall, snow depth, precip, high, low

Rank28of 1,383

Station report

The weather at Johnstown/Cambria, drawn

The nearest airport reporting now, 11.9 mi from Seward, Pennsylvania. From its report of Oct 15, 2026, 11:54 PM local time: 3 of its 6 sheets.

The sky

Overcast at 300 ft; the ceiling is 300 ft; visibility 5 mi.

Section of the sky over Johnstown/Cambria, height above the station to scale: overcast cloud with its base at 300 feet, the ceiling at 300 feet, and visibility of 5 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JSTFIG. A THE SKY OVER JOHNSTOWN/CAMBRIASECTION, 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 300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 300 FTVISIBILITY, MILES: 5 MI0510TITLEJohnstown/Cambria, the skySTATION REPORT · ASOS JSTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-JST-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

55.0 F with a dew point of 54.0 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 300 ft.

Chart of the air at Johnstown/Cambria: temperature 55.0 degrees Fahrenheit and dew point 54.0, 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 300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JSTFIG. B THE AIR AT JOHNSTOWN/CAMBRIATHE 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 200 FT ABOVE THE STATION, AT 53.7 FLOWEST CLOUD REPORTED, OVC 300 FTTEMPERATURE AND DEW POINT 55.0 F, 54.0 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 POINTTITLEJohnstown/Cambria, the airSTATION REPORT · ASOS JSTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-JST-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Johnstown/Cambria, north up: blowing from 180 degrees, the south, at 8 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 JSTFIG. C THE WIND AT JOHNSTOWN/CAMBRIAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJohnstown/Cambria, the windSTATION REPORT · ASOS JSTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-JST-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Johnstown/Cambria, 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 Seward

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

Near Seward

River and lake gauges