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One Loudoun, Virginia

Community in Loudoun County, Virginia

Air quality

The air at One Loudoun

Index 27, good, led by fine particles. Read at 6 AM from its reporting area, Northern Virginia (VA), 10 miles off.

27Good
  • Fine particles (PM2.5)27Good18.9 mi
  • Ozone13Good13 ppb18.9 mi
  • Coarse particles (PM10)10Good-

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 28, good.

Smoke, the next 45 hours

Little smoke near the ground through Sun 2 AM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at One Loudoun

0.17 in in the last 24 hours, and none in the 2 days before, to Fri 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.17in
Last 3 days
0.17in

Visibility

How far you can see at One Loudoun, the next 45 hours

Visibility stays 7 miles or more through Sun 2 AM, lowest 8 miles Fri 6 AM.

FriSat

On the radar over One Loudoun, VirginiaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest One Loudoun, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now3 instruments

measured daily2 instruments

Ashburn 0.4 NVA-LD-35

In a volunteer observer's own ground/1.4 mi away/280 ft/51 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Leesburg/Godfrey, drawn

The nearest airport reporting now, 6.0 mi from One Loudoun, Virginia. From its report of Oct 16, 2026, 6:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 300 ft; the ceiling is 300 ft; visibility 10 mi or more.

Section of the sky over Leesburg/Godfrey, height above the station to scale: overcast cloud with its base at 300 feet, the ceiling at 300 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JYOFIG. A THE SKY OVER LEESBURG/GODFREYSECTION, 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 STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 300 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELeesburg/Godfrey, the skySTATION REPORT · ASOS JYOTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-JYO-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 60.8 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 300 ft.

Chart of the air at Leesburg/Godfrey: temperature 60.8 degrees Fahrenheit and dew point 60.8, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JYOFIG. B THE AIR AT LEESBURG/GODFREYTHE 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 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, OVC 300 FTTEMPERATURE AND DEW POINT 60.8 F, 60.8 FRELATIVE HUMIDITY 100 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 POINTTITLELeesburg/Godfrey, the airSTATION REPORT · ASOS JYOTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-JYO-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (190 degrees) at 12 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Leesburg/Godfrey, north up: blowing from 190 degrees, the south, at 12 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 JYOFIG. C THE WIND AT LEESBURG/GODFREYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 190°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 12 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELeesburg/Godfrey, the windSTATION REPORT · ASOS JYOTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-JYO-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Leesburg/Godfrey, in 6 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Virginia

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

Near One Loudoun

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

Near One Loudoun

River and lake gauges