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Ethan, South Dakota

Town in Davison County, South Dakota

Air quality

The air at Ethan

Index 26, good, led by ozone. Read at 1 PM from its reporting area, Santee Sioux Reservation (NE), 50 miles off.

26Good
  • Ozone26Good-

The days ahead

Yesterday measured 24, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 7 AM.

FriSatSun

Precipitation

What has fallen at Ethan

0.04 in in the last 24 hours, 0.27 in over the last 3 days, to Fri 12 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.27in

Visibility

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

Visibility stays 10 miles or more through Sun 7 AM.

FriSatSun

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

What is measuring near here

The 5 instruments nearest Ethan, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.

measured now3 instruments

MitchellMHE

At an airfield/16.1 mi away/1,298 ft/45 ft below here

temp, wind, gust, visibility, precip, pressure

Rank142of 806

measured daily2 instruments

Ethan 1.8 ENESD-HN-11

In a volunteer observer's own ground/1.8 mi away/1,321 ft/22 ft below here

precip, snowfall, snow depth

Rank-

MitchellMCLS2

At a cooperative observer's station/11.1 mi away/1,345 ft/2 ft above here

snowfall, snow depth, precip, high, low

Rank28of 806

Station report

The weather at Mitchell, drawn

The nearest airport reporting now, 16.1 mi from Ethan, South Dakota. From its report of Oct 16, 2026, 12:53 PM 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 Mitchell, 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 MHEFIG. A THE SKY OVER MITCHELLSECTION, 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 MORE0510TITLEMitchell, the skySTATION REPORT · ASOS MHETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MHE-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

49.0 F with a dew point of 30.0 F, 48 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,300 ft up.

Chart of the air at Mitchell: temperature 49.0 degrees Fahrenheit and dew point 30.0, 48 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHEFIG. B THE AIR AT MITCHELLTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00020 F30 F40 F50 F60 FSATURATES 4,300 FT ABOVE THE STATION, AT 26.0 FTEMPERATURE 49.0 FDEW POINT 30.0 FSPREAD 19.0 FRELATIVE HUMIDITY 48 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 POINTTITLEMitchell, the airSTATION REPORT · ASOS MHETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MHE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 15 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 51 mph.

Plan of the wind at Mitchell, north up: blowing from 340 degrees, the north northwest, at 15 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHEFIG. C THE WIND AT MITCHELLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 15 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMitchell, the windSTATION REPORT · ASOS MHETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MHE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mitchell (MCLS2), 11.1 miles from here, read 15 Oct, 22:39. measured daily

Elsewhere in South Dakota

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

Near Ethan

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

Near Ethan

River and lake gauges