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Gratz, Pennsylvania

Borough in Dauphin County, Pennsylvania

Air quality

The air at Gratz

Index 20, good, led by ozone. Read at 12 AM from its reporting area, Williamsport (PA), 46 miles off.

20Good
  • Fine particles (PM2.5)10Good23.4 mi
  • Ozone20Good23 ppb23.4 mi

The days ahead

Good each day through Tue Oct 20, led by fine particles. Yesterday measured 27, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 8 PM.

SatSun

Precipitation

What has fallen at Gratz

0.07 in in the last 24 hours, and none in the 2 days before, to Fri 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.07in
Last 3 days
0.07in

Visibility

How far you can see at Gratz, the next 45 hours

Visibility stays 10 miles or more through Sun 8 PM.

SatSun

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

What is measuring near here

The 7 instruments nearest Gratz, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.7 miles away.

measured now5 instruments

measured daily2 instruments

SelinsgroveSLGP1

At a cooperative observer's station/14.1 mi away/436 ft/390 ft below here

snowfall, snow depth, precip, high, low

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Station report

The weather at Muir AAF/Indiantown, drawn

The nearest airport reporting now, 14.4 mi from Gratz, Pennsylvania. From its report of Oct 16, 2026, 11:55 PM local time: 3 of its 6 sheets.

The sky

Scattered at 3,400 ft, broken at 4,900 ft; the ceiling is 4,900 ft; visibility 10 mi or more.

Section of the sky over Muir AAF/Indiantown, height above the station to scale: scattered cloud with its base at 3,400 feet, broken cloud with its base at 4,900 feet, the ceiling at 4,900 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MUIFIG. A THE SKY OVER MUIR AAF/INDIANTOWNSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,0008,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETBKN 4,900 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 3,400 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 4,900 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMuir AAF/Indiantown, the skySTATION REPORT · ASOS MUITYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-MUI-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

62.0 F with a dew point of 50.0 F, 65 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,800 ft up; the lowest cloud reported is at 3,400 ft.

Chart of the air at Muir AAF/Indiantown: temperature 62.0 degrees Fahrenheit and dew point 50.0, 65 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,800 feet above the station, against the lowest cloud reported at 3,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MUIFIG. B THE AIR AT MUIR AAF/INDIANTOWNTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00040 F50 F60 F70 FSATURATES 2,800 FT ABOVE THE STATION, AT 47.3 FLOWEST CLOUD REPORTED, SCT 3,400 FTTEMPERATURE 62.0 FDEW POINT 50.0 FSPREAD 12.0 FRELATIVE HUMIDITY 65 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 POINTTITLEMuir AAF/Indiantown, the airSTATION REPORT · ASOS MUITYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-MUI-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at Muir AAF/Indiantown, north up: blowing from 310 degrees, the northwest, at 10 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 MUIFIG. C THE WIND AT MUIR AAF/INDIANTOWNPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMuir AAF/Indiantown, the windSTATION REPORT · ASOS MUITYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-MUI-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Muir AAF/Indiantown, 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 Gratz

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

Near Gratz

River and lake gauges