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Lancaster, Pennsylvania

City in Lancaster County, Pennsylvania

Air quality

The air at Lancaster

Index 29, good, led by fine particles. Read at 1 AM from its reporting area, Susquehanna Valley (PA), 18 miles off.

29Good
  • Fine particles (PM2.5)29Good1.5 mi
  • Ozone22Good22 ppb1.5 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 23, good.

Smoke, the next 43 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Lancaster

None in the last 24 hours; 0.06 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.06in

Visibility

How far you can see at Lancaster, the next 43 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 7 miles Fri 8 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Lancaster, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now5 instruments

LancasterLNS

At an airfield/5.8 mi away/404 ft/62 ft above here

temp, wind, gust, visibility, precip, pressure

Rank13of 1,383

measured daily2 instruments

Lancaster 0.7 SPA-LN-29

In a volunteer observer's own ground/0.4 mi away/385 ft/43 ft above here

precip, snowfall, snow depth

Rank-

LancasterLCRP1

At a cooperative observer's station/1.5 mi away/322 ft/20 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Lancaster, drawn

The nearest airport reporting now, 5.8 mi from Lancaster, Pennsylvania. From its report of Oct 16, 2026, 1:02 AM local time: 3 of its 6 sheets.

The sky

Overcast at 1,300 ft; the ceiling is 1,300 ft; visibility 9 mi.

Section of the sky over Lancaster, height above the station to scale: overcast cloud with its base at 1,300 feet, the ceiling at 1,300 feet, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LNSFIG. A THE SKY OVER LANCASTERSECTION, 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 1,300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 1,300 FTVISIBILITY, MILES: 9 MI0510TITLELancaster, the skySTATION REPORT · ASOS LNSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-LNS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

58.0 F with a dew point of 55.0 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 1,300 ft.

Chart of the air at Lancaster: temperature 58.0 degrees Fahrenheit and dew point 55.0, 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 1,300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LNSFIG. B THE AIR AT LANCASTERTHE 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 700 FT ABOVE THE STATION, AT 54.3 FLOWEST CLOUD REPORTED, OVC 1,300 FTTEMPERATURE 58.0 FDEW POINT 55.0 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 POINTTITLELancaster, the airSTATION REPORT · ASOS LNSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-LNS-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southeast (140 degrees) at 6 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Lancaster, north up: blowing from 140 degrees, the southeast, at 6 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT LNSFIG. C THE WIND AT LANCASTERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 140°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 6 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELancaster, the windSTATION REPORT · ASOS LNSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-LNS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Lancaster, 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 Lancaster

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

Near Lancaster

River and lake gauges