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Hereford, Pennsylvania

Community in Berks County, Pennsylvania

Air quality

The air at Hereford

Index 24, good, led by ozone. Read at 1 AM from its reporting area, Lehigh Valley (PA), 11 miles off.

24Good
  • Fine particles (PM2.5)14Good13 mi
  • Ozone24Good22 ppb12.9 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 15, 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 Hereford

None in the last 24 hours; 0.13 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
0.13in

Visibility

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

Fog: visibility falls to 0.8 miles Fri 7 AM, under a mile for 1 hour.

FriSat

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

What is measuring near here

The 6 instruments nearest Hereford, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.9 miles away.

measured now4 instruments

AllentownXLL

At an airfield/8.9 mi away/400 ft/44 ft below here

temp, wind, gust, visibility, precip, pressure

Rank238of 1,383

measured daily2 instruments

Zionsville 0.6 WSWPA-LH-40

In a volunteer observer's own ground/2.5 mi away/750 ft/306 ft above here

precip, snowfall, snow depth

Rank-

PalmPLMP1

At a cooperative observer's station/5.6 mi away/289 ft/155 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Allentown, drawn

The nearest airport reporting now, 8.9 mi from Hereford, Pennsylvania. From its report of Oct 16, 2026, 1:35 AM local time: 3 of its 6 sheets.

The sky

Broken at 1,800 ft, overcast at 3,300 ft; the ceiling is 1,800 ft; visibility 10 mi or more.

Section of the sky over Allentown, height above the station to scale: broken cloud with its base at 1,800 feet, overcast cloud with its base at 3,300 feet, the ceiling at 1,800 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XLLFIG. A THE SKY OVER ALLENTOWNSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,300 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 1,800 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,800 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEAllentown, the skySTATION REPORT · ASOS XLLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-XLL-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

59.0 F with a dew point of 51.8 F, 77 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,700 ft up; the lowest cloud reported is at 1,800 ft.

Chart of the air at Allentown: temperature 59.0 degrees Fahrenheit and dew point 51.8, 77 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,700 feet above the station, against the lowest cloud reported at 1,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT XLLFIG. B THE AIR AT ALLENTOWNTHE 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 1,700 FT ABOVE THE STATION, AT 50.1 FLOWEST CLOUD REPORTED, BKN 1,800 FTTEMPERATURE 59.0 FDEW POINT 51.8 FSPREAD 7.2 FRELATIVE HUMIDITY 77 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 POINTTITLEAllentown, the airSTATION REPORT · ASOS XLLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-XLL-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Allentown, 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 XLLFIG. C THE WIND AT ALLENTOWNPLAN, 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 FORCE73TITLEAllentown, the windSTATION REPORT · ASOS XLLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-XLL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Allentown, 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 Hereford

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

Near Hereford

River and lake gauges