Storm Station
Rosslyn Farms, Pennsylvania
55° 72°/51°
Clear· Feels like 55°·Light breeze 8 mph NW
Partly cloudy, with a low around 54. Northwest wind around 8 mph.
0UV Low
31Air quality
79%Humidity
0%Cloud
Now
3:15 AM
55feels55
now, clear
Today
Sep 27
7251
22%
14mph
overcast
Mon
Sep 28
6458
overcast
Tue
Sep 29
7258
overcast
Wed
Sep 30
7757
overcast
Thu
Oct 1
8160
19%
overcast
Fri
Oct 2
6854
34%
drizzle dense
Sat
Oct 3
6347
30%
overcast
55°
72°51°
64°58°
72°58°
77°57°
81°60°
68°54°
63°47°

As of 3:15 AM in Rosslyn Farms, Pennsylvania.

What is measuring near here

The 4 instruments nearest Rosslyn Farms, 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 now2 instruments

Pittsburgh INTLPIT

At an airfield/8.9 mi away/1,224 ft/193 ft above here

temp, wind, gust, visibility, precip, pressure

Rank1of 543

measured daily2 instruments

Pittsburgh 3.9 WPA-AL-24

In a volunteer observer's own ground/1.2 mi away/931 ft/100 ft below here

precip, snowfall, snow depth

Rank-

Emsworth DamEMSP1

At a dam/5.5 mi away/696 ft/335 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Pittsburgh INTL, drawn

The nearest airport reporting now, 8.9 mi from Rosslyn Farms. From its report of Sep 27, 2026, 2:51 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 25,000 ft; visibility 10 mi or more.

Section of the sky over Pittsburgh INTL, height above the station to scale: a few clouds cloud with its base at 25,000 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 STATION05,00010,00015,00020,00025,00030,00035,00040,000ETAGESLOWMIDDLEHIGHTHE STATIONTHE CEILOMETER READS TO 12,000 FTFEW 25,000 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEPittsburgh INTL, the skySTATION REPORT · ASOS PITTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-PIT-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-010, FB-SKY-011, FB-SKY-012

The air

56.0 F with a dew point of 48.0 F, 74 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,800 ft up; the lowest cloud reported is at 25,000 ft.

Chart of the air at Pittsburgh INTL: temperature 56.0 degrees Fahrenheit and dew point 48.0, 74 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,800 feet above the station, against the lowest cloud reported at 25,000 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 STATION01,0002,0003,0004,0005,0006,0007,0008,00040 F50 F60 F70 FSATURATES 1,800 FT ABOVE THE STATION, AT 46.2 FABOVE THIS SHEET: LOWEST CLOUD REPORTED, FEW 25,000 FTTEMPERATURE 56.0 FDEW POINT 48.0 FSPREAD 8.0 FRELATIVE HUMIDITY 74 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 6DATE2026-09-27IDSR-PIT-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 12 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Pittsburgh INTL, north up: blowing from 330 degrees, the north northwest, at 12 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 PITFIG. C THE WIND AT PITTSBURGH INTLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPittsburgh INTL, the windSTATION REPORT · ASOS PITTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-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), 5.5 miles from here, read 26 Sep, 06:00. measured daily

Elsewhere in Pennsylvania

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

Near Rosslyn Farms

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