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Accokeek, Maryland

Community in Prince George's County, Maryland

Air quality

The air at Accokeek

Index 25, good, led by fine particles. Read at 8 AM from its reporting area, Northern Virginia and DC (DC), 17 miles off.

25Good
  • Fine particles (PM2.5)25Good9.1 mi
  • Ozone17Good11 ppb9.1 mi
  • Coarse particles (PM10)-9.1 mi
  • Nitrogen dioxide3Good3.6 ppb13.4 mi
  • Carbon monoxide-0.2 ppm13.4 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 23, good.

Smoke, the next 43 hours

Little smoke near the ground through Sun 2 AM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at Accokeek

0.06 in in the last 24 hours, and none in the 2 days before, to Fri 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
0.06in

Visibility

How far you can see at Accokeek, the next 43 hours

Visibility stays 3 miles or more through Sun 2 AM, lowest 4 miles Sat 4 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Accokeek, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now5 instruments

CedarvilleCVLM2

At a river or reservoir gauge/9.8 mi away/233 ft/33 ft above here

temp, wind, gust, humidity, pressure

Rank180of 736

Andrews AFBADW

At an airfield/11.8 mi away/282 ft/82 ft above here

temp, wind, gust, visibility, precip, pressure

Rank4of 736

Powder MillS2049

At a soil climate station/25.0 mi away/105 ft/95 ft below here

temp, humidity, soil temp, soil moisture

Rank734of 736

measured daily2 instruments

Accokeek 1.4 ENEMD-PG-71

In a volunteer observer's own ground/0.6 mi away/111 ft/89 ft below here

precip, snowfall, snow depth

Rank-

Bristol/Jug Bay Met SensorsBSLM2

At a cooperative observer's station/17.3 mi away/-20 ft/220 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Andrews AFB, drawn

The nearest airport reporting now, 11.8 mi from Accokeek, Maryland. From its report of Oct 16, 2026, 7:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 400 ft; the ceiling is 400 ft; visibility 10 mi or more.

Section of the sky over Andrews AFB, height above the station to scale: overcast cloud with its base at 400 feet, the ceiling at 400 feet, and visibility of 10 mi or more.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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONOVC 400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 400 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEAndrews 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

63.0 F with a dew point of 60.8 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 400 ft.

Chart of the air at Andrews AFB: temperature 63.0 degrees Fahrenheit and dew point 60.8, 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 400 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 500 FT ABOVE THE STATION, AT 60.2 FLOWEST CLOUD REPORTED, OVC 400 FTTEMPERATURE AND DEW POINT 63.0 F, 60.8 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 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 southwest (200 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Andrews AFB, north up: blowing from 200 degrees, the south southwest, 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 ADWFIG. C THE WIND AT ANDREWS AFBPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 200°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE 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

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Snow on the ground

Elsewhere in Maryland

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

Near Accokeek

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

Near Accokeek

River and lake gauges