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Garretts Mill, Maryland

Community in Washington County, Maryland

Air quality

The air at Garretts Mill

Index 34, good, led by ozone. Read at 8 PM from its reporting area, Martinsburg (WV), 15 miles off.

34Good
  • Ozone34Good33 ppb15.1 mi

The days ahead

Good each day through Wed Oct 21, led by fine particles. Yesterday measured 15, good.

Smoke, the next 42 hours

No smoke near the ground through Sun 2 PM.

SatSun

Precipitation

What has fallen at Garretts Mill

0.08 in in the last 24 hours, 0.19 in over the last 3 days, to Fri 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.08in
Last 3 days
0.19in

Visibility

How far you can see at Garretts Mill, the next 42 hours

Visibility stays 10 miles or more through Sun 2 PM.

SatSun

On the radar over Garretts Mill, MarylandReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Garretts Mill, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.4 miles away.

measured now4 instruments

measured daily2 instruments

Knoxville 2.6 WMD-WH-26

In a volunteer observer's own ground/2.4 mi away/278 ft/110 ft below here

precip, snowfall, snow depth

Rank-

Hagerstown 1EHGCM2

At a cooperative observer's station/20.0 mi away/541 ft/153 ft above here

snowfall, snow depth, precip, high, low

Rank358of 742

Station report

The weather at Frederick Muni Apt, drawn

The nearest airport reporting now, 17.2 mi from Garretts Mill, Maryland. From its report of Oct 16, 2026, 8:47 PM local time: 3 of its 6 sheets.

The sky

Broken at 8,500 ft, overcast at 11,000 ft; the ceiling is 8,500 ft; visibility 10 mi or more.

Section of the sky over Frederick Muni Apt, height above the station to scale: broken cloud with its base at 8,500 feet, overcast cloud with its base at 11,000 feet, the ceiling at 8,500 feet, 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 STATION02,5005,0007,50010,00012,50015,00017,500ETAGESLOWMIDDLEHIGHTHE STATIONOVC 11,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 8,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 8,500 FTVISIBILITY, 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, FB-SKY-013, FB-SKY-014

The air

66.2 F with a dew point of 53.6 F, 64 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,900 ft up; the lowest cloud reported is at 8,500 ft.

Chart of the air at Frederick Muni Apt: temperature 66.2 degrees Fahrenheit and dew point 53.6, 64 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,900 feet above the station, against the lowest cloud reported at 8,500 feet; 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 STATION02,0004,0006,0008,00010,00040 F50 F60 F70 F80 FSATURATES 2,900 FT ABOVE THE STATION, AT 50.7 FLOWEST CLOUD REPORTED, BKN 8,500 FTTEMPERATURE 66.2 FDEW POINT 53.6 FSPREAD 12.6 FRELATIVE HUMIDITY 64 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 northwest (340 degrees) at 13 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 32 mph.

Plan of the wind at Frederick Muni Apt, north up: blowing from 340 degrees, the north northwest, at 13 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 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 13 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 Garretts Mill

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

Near Garretts Mill

River and lake gauges