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Union Deposit, Pennsylvania

Community in Dauphin County, Pennsylvania

Air quality

The air at Union Deposit

Index 25, good, led by fine particles. Read at 7 AM from its reporting area, Susquehanna Valley (PA), 24 miles off.

25Good
  • Fine particles (PM2.5)25Good1.2 mi
  • Ozone17Good15 ppb1.2 mi

The days ahead

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

Smoke, the next 44 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 Union Deposit

None in the last 3 days, to Fri 6 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Union Deposit, the next 44 hours

Visibility stays 6 miles or more through Sun 2 AM, lowest 6 miles Fri 8 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Union Deposit, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.9 miles away.

measured now5 instruments

measured daily2 instruments

HarrisburgHRBP1

At a cooperative observer's station/9.9 mi away/423 ft/40 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Middletown/Olmsted, drawn

The nearest airport reporting now, 7.9 mi from Union Deposit, Pennsylvania. From its report of Oct 16, 2026, 6:56 AM local time: 3 of its 6 sheets.

The sky

Overcast at 800 ft; the ceiling is 800 ft; visibility 10 mi or more.

Section of the sky over Middletown/Olmsted, height above the station to scale: overcast cloud with its base at 800 feet, the ceiling at 800 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDTFIG. A THE SKY OVER MIDDLETOWN/OLMSTEDSECTION, 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 800 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 800 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMiddletown/Olmsted, the skySTATION REPORT · ASOS MDTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MDT-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

61.0 F with a dew point of 59.0 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 Middletown/Olmsted: temperature 61.0 degrees Fahrenheit and dew point 59.0, 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 MDTFIG. B THE AIR AT MIDDLETOWN/OLMSTEDTHE 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 FSATURATES 500 FT ABOVE THE STATION, AT 58.5 FLOWEST CLOUD REPORTED, OVC 800 FTTEMPERATURE AND DEW POINT 61.0 F, 59.0 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 POINTTITLEMiddletown/Olmsted, the airSTATION REPORT · ASOS MDTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MDT-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 Middletown/Olmsted, 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 MDTFIG. C THE WIND AT MIDDLETOWN/OLMSTEDPLAN, 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 FORCE73TITLEMiddletown/Olmsted, the windSTATION REPORT · ASOS MDTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MDT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Middletown/Olmsted, 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 Union Deposit

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

Near Union Deposit

River and lake gauges