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Mellette, South Dakota

City in Spink County, South Dakota

Air quality

The air at Mellette

Index 36, good, led by fine particles. Read at 12 AM from its reporting area, Aberdeen (SD), 22 miles off.

36Good
  • Fine particles (PM2.5)36Good-
  • Coarse particles (PM10)24Good-

The days ahead

Yesterday measured 18, good.

Smoke, the next 44 hours

No smoke near the ground through Sun 7 PM.

SatSun

Precipitation

What has fallen at Mellette

None in the last 24 hours; 0.05 in over the last 3 days, to Fri 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.05in

Visibility

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

Visibility stays 10 miles or more through Sun 7 PM.

SatSun

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

What is measuring near here

The 6 instruments nearest Mellette, 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 now4 instruments

SD RWIS MelletteSD043

Beside a road/0.7 mi away/1,299 ft/1 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

Redfield1D8

At an airfield/20.2 mi away/1,302 ft/4 ft above here

temp, wind, gust, visibility, precip, pressure

Rank115of 817

measured daily2 instruments

MelletteMELS2

At a cooperative observer's station/0.3 mi away/1,293 ft/5 ft below here

snowfall, snow depth, precip, high, low

Rank-

Stratford 3.6 SSWSD-BR-51

In a volunteer observer's own ground/11.3 mi away/1,295 ft/3 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Redfield, drawn

The nearest airport reporting now, 20.2 mi from Mellette, South Dakota. From its report of Oct 17, 2026, 12:15 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 Redfield, 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 1D8FIG. A THE SKY OVER REDFIELDSECTION, 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 MORE0510TITLERedfield, the skySTATION REPORT · ASOS 1D8TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-1D8-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

37.4 F with a dew point of 32.0 F, 81 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up.

Chart of the air at Redfield: temperature 37.4 degrees Fahrenheit and dew point 32.0, 81 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1D8FIG. B THE AIR AT REDFIELDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 1,200 FT ABOVE THE STATION, AT 30.8 FTEMPERATURE 37.4 FDEW POINT 32.0 FSPREAD 5.4 FRELATIVE HUMIDITY 81 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 POINTTITLERedfield, the airSTATION REPORT · ASOS 1D8TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-1D8-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south (180 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Redfield, north up: blowing from 180 degrees, the south, 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 1D8FIG. C THE WIND AT REDFIELDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 180°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERedfield, the windSTATION REPORT · ASOS 1D8TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-1D8-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in South Dakota

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

Near Mellette

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

Near Mellette

River and lake gauges