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Mount Holly Springs, Pennsylvania

Borough in Cumberland County, Pennsylvania

Air quality

The air at Mount Holly Springs

Index 24, good, led by fine particles. Read at 12 AM from its reporting area, Susquehanna Valley (PA), 32 miles off.

24Good
  • Fine particles (PM2.5)24Good8.7 mi
  • Ozone22Good15 ppb15 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 57, moderate.

Smoke, the next 45 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 Mount Holly Springs

0.06 in in the last 24 hours, 0.09 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.09in

Visibility

How far you can see at Mount Holly Springs, the next 45 hours

Visibility stays 3 miles or more through Sat 8 PM, lowest 3 miles Fri 9 AM.

FriSat

On the radar over Mount Holly Springs, PennsylvaniaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Mount Holly Springs, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now4 instruments

measured daily2 instruments

Mount Holly Springs 0.8 NPA-CD-29

In a volunteer observer's own ground/0.6 mi away/537 ft/20 ft below here

precip, snowfall, snow depth

Rank-

Pine Grove FurnacePGFP1

At a cooperative observer's station/8.2 mi away/896 ft/339 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Harrisburg/Capital, drawn

The nearest airport reporting now, 19.1 mi from Mount Holly Springs, Pennsylvania. From its report of Oct 15, 2026, 11:56 PM local time: 3 of its 6 sheets.

The sky

Broken at 800 ft, overcast at 1,900 ft; the ceiling is 800 ft; visibility 6 mi.

Section of the sky over Harrisburg/Capital, height above the station to scale: broken cloud with its base at 800 feet, overcast cloud with its base at 1,900 feet, the ceiling at 800 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CXYFIG. A THE SKY OVER HARRISBURG/CAPITALSECTION, 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 1,900 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 800 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 800 FTVISIBILITY, MILES: 6 MI0510TITLEHarrisburg/Capital, the skySTATION REPORT · ASOS CXYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CXY-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 56.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up; the lowest cloud reported is at 800 ft.

Chart of the air at Harrisburg/Capital: temperature 58.0 degrees Fahrenheit and dew point 56.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station, against the lowest cloud reported at 800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CXYFIG. B THE AIR AT HARRISBURG/CAPITALTHE 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 500 FT ABOVE THE STATION, AT 55.5 FLOWEST CLOUD REPORTED, BKN 800 FTTEMPERATURE AND DEW POINT 58.0 F, 56.0 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 POINTTITLEHarrisburg/Capital, the airSTATION REPORT · ASOS CXYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CXY-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east southeast (120 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale. The strongest gust today was 18 mph.

Plan of the wind at Harrisburg/Capital, north up: blowing from 120 degrees, the east southeast, at 5 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 CXYFIG. C THE WIND AT HARRISBURG/CAPITALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 120°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHarrisburg/Capital, the windSTATION REPORT · ASOS CXYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CXY-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Harrisburg/Capital, 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 Mount Holly Springs

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

Near Mount Holly Springs

River and lake gauges