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South Vienna, Ohio

Village in Clark County, Ohio

Air quality

The air at South Vienna

Index 53, moderate, led by fine particles. Read at 4 AM from its reporting area, Dayton (OH), 33 miles off.

53Moderate
  • Fine particles (PM2.5)53Moderate10.6 mi
  • Ozone23Good24 ppb11.4 mi
  • Coarse particles (PM10)19Good-

The days ahead

Good each day through Mon Oct 19, led by fine particles. Yesterday measured 41, good.

Smoke, the next 40 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at South Vienna

0.01 in in the last 24 hours, 0.39 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.01in
Last 3 days
0.39in

Visibility

How far you can see at South Vienna, the next 40 hours

Visibility stays 4 miles or more through Sat 8 PM, lowest 5 miles Fri 8 PM.

FriSat

On the radar over South Vienna, OhioReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest South Vienna, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.6 miles away.

measured now5 instruments

LondonUYF

At an airfield/7.9 mi away/1,051 ft/148 ft below here

temp, wind, gust, visibility, precip, pressure

Rank792of 1,590

measured daily2 instruments

South Vienna 2.6 ESEOH-CK-33

In a volunteer observer's own ground/2.6 mi away/1,194 ft/5 ft below here

precip, snowfall, snow depth

Rank-

LondonLNDO1

At a cooperative observer's station/9.1 mi away/1,047 ft/152 ft below here

snowfall, snow depth, precip, high, low

Rank749of 1,590

Station report

The weather at London, drawn

The nearest airport reporting now, 7.9 mi from South Vienna, Ohio. From its report of Oct 16, 2026, 4:35 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over London, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT UYFFIG. A THE SKY OVER LONDONSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLELondon, the skySTATION REPORT · ASOS UYFTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-UYF-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

69.8 F with a dew point of 64.4 F, 83 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,300 ft up.

Chart of the air at London: temperature 69.8 degrees Fahrenheit and dew point 64.4, 83 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT UYFFIG. B THE AIR AT LONDONTHE 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 F80 FSATURATES 1,300 FT ABOVE THE STATION, AT 63.1 FTEMPERATURE 69.8 FDEW POINT 64.4 FSPREAD 5.4 FRELATIVE HUMIDITY 83 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 POINTTITLELondon, the airSTATION REPORT · ASOS UYFTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-UYF-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west southwest (240 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 20 mph.

Plan of the wind at London, north up: blowing from 240 degrees, the west 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 UYFFIG. C THE WIND AT LONDONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 240°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLELondon, the windSTATION REPORT · ASOS UYFTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-UYF-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at London (LNDO1), 9.1 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Ohio

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

Near South Vienna

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

Near South Vienna

River and lake gauges