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Trego-Rohrersville Station, Maryland

Community in Washington County, Maryland

Air quality

The air at Trego-Rohrersville Station

Index 28, good, led by ozone. Read at 7 PM from its reporting area, Martinsburg (WV), 16 miles off.

28Good
  • Ozone28Good26 ppb9.8 mi

The days ahead

Good each day through Wed Oct 21, led by fine particles. Yesterday measured 34, good.

Smoke, the next 43 hours

No smoke near the ground through Mon 2 PM.

SatSunMon

Precipitation

What has fallen at Trego-Rohrersville Station

None in the last 24 hours; 0.24 in over the last 3 days, to Sat 7 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.24in

Visibility

How far you can see at Trego-Rohrersville Station, the next 43 hours

Visibility stays 10 miles or more through Mon 2 PM.

SatSunMon

On the radar over Trego-Rohrersville Station, MarylandReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Trego-Rohrersville Station, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.4 miles away.

measured now4 instruments

measured daily2 instruments

Sharpsburg 0.2 ENEMD-WH-23

In a volunteer observer's own ground/4.4 mi away/410 ft/261 ft below here

precip, snowfall, snow depth

Rank-

Hagerstown 1EHGCM2

At a cooperative observer's station/14.6 mi away/541 ft/130 ft below here

snowfall, snow depth, precip, high, low

Rank367of 748

Station report

The weather at Frederick Muni Apt, drawn

The nearest airport reporting now, 16.0 mi from Trego-Rohrersville Station, Maryland. From its report of Oct 17, 2026, 5:47 PM local time: 3 of its 6 sheets.

The sky

Clear; visibility 10 mi or more.

Section of the sky over Frederick Muni Apt, height above the station to scale: a clear sky, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FDKFIG. A THE SKY OVER FREDERICK MUNI APTSECTION, 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 STATIONCLEARVISIBILITY, MILES: 10 MI OR MORE0510TITLEFrederick Muni Apt, the skySTATION REPORT · ASOS FDKTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-FDK-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

53.6 F with a dew point of 28.4 F, 38 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 5,700 ft up.

Chart of the air at Frederick Muni Apt: temperature 53.6 degrees Fahrenheit and dew point 28.4, 38 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 5,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FDKFIG. B THE AIR AT FREDERICK MUNI APTTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,0008,00010 F20 F30 F40 F50 F60 FSATURATES 5,700 FT ABOVE THE STATION, AT 23.2 FTEMPERATURE 53.6 FDEW POINT 28.4 FSPREAD 25.2 FRELATIVE HUMIDITY 38 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 POINTTITLEFrederick Muni Apt, the airSTATION REPORT · ASOS FDKTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-FDK-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (10 degrees) at 17 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 29 mph.

Plan of the wind at Frederick Muni Apt, north up: blowing from 10 degrees, the north, at 17 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FDKFIG. C THE WIND AT FREDERICK MUNI APTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 10°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEFrederick Muni Apt, the windSTATION REPORT · ASOS FDKTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-FDK-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Frederick Muni Apt, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Maryland

21 places, each with its own forecast and its own instruments.

Near Trego-Rohrersville Station

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

Near Trego-Rohrersville Station

River and lake gauges