Storm Station
Derry, Pennsylvania
52° 68°/51°
Clear· Feels like 52°·Light air 2 mph WSW
Partly cloudy, with a low around 53. Northwest wind around 3 mph.
0UV Low
31Air quality
80%Humidity
0%Cloud
Now
3:45 AM
52feels52
now, clear
Today
Sep 27
6851
38%
13mph
drizzle light
Mon
Sep 28
6257
13%
drizzle light
Tue
Sep 29
6856
overcast
Wed
Sep 30
7454
overcast
Thu
Oct 1
8058
19%
overcast
Fri
Oct 2
6548
32%
drizzle
Sat
Oct 3
6143
33%
overcast
52°
68°51°
62°57°
68°56°
74°54°
80°58°
65°48°
61°43°

As of 3:45 AM in Derry, Pennsylvania.

What is measuring near here

The 5 instruments nearest Derry, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now3 instruments

Latrobe/WestmorlandLBE

At an airfield/6.8 mi away/1,184 ft/3 ft above here

temp, wind, gust, visibility, precip, pressure

Rank469of 543

Quarry TrailQTRP1

At a river or reservoir gauge/14.6 mi away/2,749 ft/1,568 ft above here

temp, wind, gust, humidity, pressure

Rank47of 543

measured daily2 instruments

Blairsville 3.6 SSWPA-WT-99

In a volunteer observer's own ground/3.6 mi away/1,110 ft/71 ft below here

precip, snowfall, snow depth

Rank-

Laughlintown 1SERRFP1

At a cooperative observer's station/10.0 mi away/1,293 ft/112 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Latrobe/Westmorland, drawn

The nearest airport reporting now, 6.8 mi from Derry. From its report of Sep 27, 2026, 3:35 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Latrobe/Westmorland, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LBEFIG. A THE SKY OVER LATROBE/WESTMORLANDSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELatrobe/Westmorland, the skySTATION REPORT · ASOS LBETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-LBE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

50.0 F with a dew point of 48.2 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at Latrobe/Westmorland: temperature 50.0 degrees Fahrenheit and dew point 48.2, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LBEFIG. B THE AIR AT LATROBE/WESTMORLANDTHE 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 FSATURATES 400 FT ABOVE THE STATION, AT 47.7 FTEMPERATURE AND DEW POINT 50.0 F, 48.2 FRELATIVE HUMIDITY 93 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 POINTTITLELatrobe/Westmorland, the airSTATION REPORT · ASOS LBETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-LBE-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Latrobe/Westmorland, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LBEFIG. C THE WIND AT LATROBE/WESTMORLANDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELatrobe/Westmorland, the windSTATION REPORT · ASOS LBETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-LBE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Laughlintown 1SE (RRFP1), 10.0 miles from here, read 25 Sep, 08:00. measured daily

Elsewhere in Pennsylvania

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

Near Derry

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