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Manassas, Virginia

City in Manassas city, Virginia

Air quality

The air at Manassas

Index 25, good, led by fine particles. Read at 4 AM from its reporting area, Northern Virginia (VA), 11 miles off.

25Good
  • Fine particles (PM2.5)25Good19 mi
  • Ozone14Good13 ppb11.4 mi
  • Coarse particles (PM10)9Good19 mi
  • Nitrogen dioxide1Good1.4 ppb11.4 mi
  • Carbon monoxide-0.2 ppm23.3 mi

The days ahead

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

Smoke, the next 41 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Manassas

0.05 in in the last 24 hours, and none in the 2 days before, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.05in
Last 3 days
0.05in

Visibility

How far you can see at Manassas, the next 41 hours

Visibility stays 7 miles or more through Sat 8 PM, lowest 8 miles Fri 6 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Manassas, 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

ManassasMNNV2

At a cooperative observer's station/1.4 mi away/256 ft/56 ft below here

snowfall, snow depth, precip, high, low

Rank-

Manassas 2.0 NVA-PW-22

In a volunteer observer's own ground/1.9 mi away/231 ft/81 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Manassas Muni(AWOS), drawn

The nearest airport reporting now, 2.9 mi from Manassas, Virginia. From its report of Oct 16, 2026, 4:30 AM local time: 3 of its 6 sheets.

The sky

Overcast at 500 ft; the ceiling is 500 ft; visibility 10 mi or more.

Section of the sky over Manassas Muni(AWOS), height above the station to scale: overcast cloud with its base at 500 feet, the ceiling at 500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HEFFIG. A THE SKY OVER MANASSAS MUNI(AWOS)SECTION, 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 500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEManassas Muni(AWOS), the skySTATION REPORT · ASOS HEFTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-HEF-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

62.6 F with a dew point of 60.8 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 500 ft.

Chart of the air at Manassas Muni(AWOS): temperature 62.6 degrees Fahrenheit and dew point 60.8, 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 500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HEFFIG. B THE AIR AT MANASSAS MUNI(AWOS)THE 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 60.4 FLOWEST CLOUD REPORTED, OVC 500 FTTEMPERATURE AND DEW POINT 62.6 F, 60.8 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 POINTTITLEManassas Muni(AWOS), the airSTATION REPORT · ASOS HEFTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-HEF-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southeast (160 degrees) at 5 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Manassas Muni(AWOS), north up: blowing from 160 degrees, the south southeast, at 5 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HEFFIG. C THE WIND AT MANASSAS MUNI(AWOS)PLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 160°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 5 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEManassas Muni(AWOS), the windSTATION REPORT · ASOS HEFTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-HEF-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Manassas Muni(AWOS), 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 Manassas

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

Near Manassas

River and lake gauges