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Potomac Heights, Maryland

Community in Charles County, Maryland

Air quality

The air at Potomac Heights

Index 29, good, led by fine particles. Read at 11 PM from its reporting area, Northern Virginia and DC (DC), 23 miles off.

29Good
  • Fine particles (PM2.5)29Good-
  • Ozone22Good-

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 56, moderate.

Smoke, the next 46 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Potomac Heights

0.03 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.03in
Last 3 days
0.03in

Visibility

How far you can see at Potomac Heights, the next 46 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 8 AM.

FriSat

On the radar over Potomac Heights, MarylandReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Potomac Heights, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now5 instruments

CedarvilleCVLM2

At a river or reservoir gauge/17.3 mi away/233 ft/151 ft above here

temp, wind, gust, humidity, pressure

Rank180of 736

Andrews AFBADW

At an airfield/20.4 mi away/282 ft/200 ft above here

temp, wind, gust, visibility, precip, pressure

Rank4of 736

Powder MillS2049

At a soil climate station/32.4 mi away/105 ft/23 ft above here

temp, humidity, soil temp, soil moisture

Rank734of 736

measured daily2 instruments

White Plains 1.8 WSWMD-CH-4

In a volunteer observer's own ground/7.0 mi away/184 ft/102 ft above here

precip, snowfall, snow depth

Rank-

MechanicsvilleMECM2

At a cooperative observer's station/25.6 mi away/135 ft/53 ft above here

snowfall, snow depth, precip, high, low

Rank736of 736

Station report

The weather at Andrews AFB, drawn

The nearest airport reporting now, 20.4 mi from Potomac Heights, Maryland. From its report of Oct 15, 2026, 11:09 PM local time: 3 of its 6 sheets.

The sky

Broken at 2,000 ft, overcast at 2,600 ft; the ceiling is 2,000 ft; visibility 6 mi.

Section of the sky over Andrews AFB, height above the station to scale: broken cloud with its base at 2,000 feet, overcast cloud with its base at 2,600 feet, the ceiling at 2,000 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ADWFIG. A THE SKY OVER ANDREWS AFBSECTION, 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 STATION05001,0001,5002,0002,5003,0003,5004,000ETAGESLOWTHE STATIONOVC 2,600 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 2,000 FTVISIBILITY, MILES: 6 MI0510TITLEAndrews AFB, the skySTATION REPORT · ASOS ADWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-ADW-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

60.8 F with a dew point of 59.0 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up; the lowest cloud reported is at 2,000 ft.

Chart of the air at Andrews AFB: temperature 60.8 degrees Fahrenheit and dew point 59.0, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station, against the lowest cloud reported at 2,000 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ADWFIG. B THE AIR AT ANDREWS AFBTHE 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 400 FT ABOVE THE STATION, AT 58.6 FLOWEST CLOUD REPORTED, BKN 2,000 FTTEMPERATURE AND DEW POINT 60.8 F, 59.0 FRELATIVE HUMIDITY 94 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 POINTTITLEAndrews AFB, the airSTATION REPORT · ASOS ADWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-ADW-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (170 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Andrews AFB, north up: blowing from 170 degrees, the south, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ADWFIG. C THE WIND AT ANDREWS AFBPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 170°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAndrews AFB, the windSTATION REPORT · ASOS ADWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-ADW-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Andrews AFB, in 6 sheets, each beside the Field Book plates that explain it

-

Snow on the ground

Elsewhere in Maryland

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

Near Potomac Heights

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

Near Potomac Heights

River and lake gauges