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Avon, South Dakota

City in Bon Homme County, South Dakota

Air quality

The air at Avon

Index 13, good, led by ozone. Read at 5 AM from its reporting area, Santee Sioux Reservation (NE), 16 miles off.

13Good
  • Ozone13Good-

The days ahead

Yesterday measured 28, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 1 AM.

SatSun

Precipitation

What has fallen at Avon

None in the last 24 hours; 0.25 in over the last 3 days, to Sat 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.25in

Visibility

How far you can see at Avon, the next 44 hours

Visibility stays 10 miles or more through Mon 1 AM.

SatSun

On the radar over Avon, South DakotaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Avon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now3 instruments

WagnerAGZ

At an airfield/12.6 mi away/1,467 ft/146 ft below here

temp, wind, gust, visibility, precip, pressure

Rank735of 817

measured daily2 instruments

Avon 0.4 NESD-BH-17

In a volunteer observer's own ground/0.3 mi away/1,618 ft/5 ft above here

precip, snowfall, snow depth

Rank-

TyndallTYNS2

At a cooperative observer's station/10.0 mi away/1,421 ft/192 ft below here

snowfall, snow depth, precip, high, low

Rank23of 817

Station report

The weather at Wagner, drawn

The nearest airport reporting now, 12.6 mi from Avon, South Dakota. From its report of Oct 17, 2026, 6:15 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 Wagner, 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 AGZFIG. A THE SKY OVER WAGNERSECTION, 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 MORE0510TITLEWagner, the skySTATION REPORT · ASOS AGZTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-AGZ-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

37.4 F with a dew point of 37.4 F, 100 per cent relative humidity. The air is saturated at the ground.

Chart of the air at Wagner: temperature 37.4 degrees Fahrenheit and dew point 37.4, 100 per cent relative humidity; the air saturated at the ground; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT AGZFIG. B THE AIR AT WAGNERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 FSATURATED AT THE GROUNDTEMPERATURE AND DEW POINT 37.4 F, 37.4 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 POINTTITLEWagner, the airSTATION REPORT · ASOS AGZTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-AGZ-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 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Wagner, north up: blowing from 170 degrees, the south, at 8 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 AGZFIG. C THE WIND AT WAGNERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 170°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWagner, the windSTATION REPORT · ASOS AGZTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-AGZ-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Tyndall (TYNS2), 10.0 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in South Dakota

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

Near Avon

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

Near Avon

River and lake gauges