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Glen Rock, Pennsylvania

Borough in York County, Pennsylvania

Air quality

The air at Glen Rock

Index 30, good, led by fine particles. Read at 9 AM from its reporting area, Susquehanna Valley (PA), 12 miles off.

30Good
  • Fine particles (PM2.5)30Good12.2 mi
  • Ozone16Good12 ppb12.2 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 28, good.

Smoke, the next 41 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 Glen Rock

0.01 in in the last 24 hours, 0.09 in over the last 3 days, to Fri 9 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.01in
Last 3 days
0.09in

Visibility

How far you can see at Glen Rock, the next 41 hours

Visibility stays 5 miles or more through Sun 2 AM, lowest 5 miles Fri 10 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest Glen Rock, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.2 miles away.

measured now4 instruments

measured daily2 instruments

Spring GroveSGRP1

At a cooperative observer's station/8.8 mi away/472 ft/89 ft below here

snowfall, snow depth, precip, high, low

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Station report

The weather at Thomasville/York, drawn

The nearest airport reporting now, 11.4 mi from Glen Rock, Pennsylvania. From its report of Oct 16, 2026, 10:34 AM local time: 3 of its 6 sheets.

The sky

Overcast at 600 ft; the ceiling is 600 ft; visibility 10 mi or more.

Section of the sky over Thomasville/York, height above the station to scale: overcast cloud with its base at 600 feet, the ceiling at 600 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT THVFIG. A THE SKY OVER THOMASVILLE/YORKSECTION, 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 600 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 600 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEThomasville/York, the skySTATION REPORT · ASOS THVTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-THV-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

65.0 F with a dew point of 62.0 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 600 ft.

Chart of the air at Thomasville/York: temperature 65.0 degrees Fahrenheit and dew point 62.0, 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 600 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT THVFIG. B THE AIR AT THOMASVILLE/YORKTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 F80 FSATURATES 700 FT ABOVE THE STATION, AT 61.3 FLOWEST CLOUD REPORTED, OVC 600 FTTEMPERATURE 65.0 FDEW POINT 62.0 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 POINTTITLEThomasville/York, the airSTATION REPORT · ASOS THVTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-THV-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (200 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Thomasville/York, north up: blowing from 200 degrees, the south southwest, 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 THVFIG. C THE WIND AT THOMASVILLE/YORKPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 200°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEThomasville/York, the windSTATION REPORT · ASOS THVTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-THV-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Thomasville/York, 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 Glen Rock

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

Near Glen Rock

River and lake gauges