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Westport, South Dakota

Town in Brown County, South Dakota

Air quality

The air at Westport

Index 5, good, led by coarse particles. Read at 5 AM from its reporting area, Aberdeen (SD), 13 miles off.

5Good
  • Fine particles (PM2.5)3Good-
  • Coarse particles (PM10)5Good-

The days ahead

Yesterday measured 18, good.

Smoke, the next 45 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Westport

0.02 in in the last 24 hours, 0.17 in over the last 3 days, to Fri 4 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
0.17in

Visibility

How far you can see at Westport, the next 45 hours

Visibility stays 10 miles or more through Sun 1 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Westport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.5 miles away.

measured now5 instruments

AberdeenABR

At an airfield/14.2 mi away/1,296 ft/34 ft below here

temp, wind, gust, visibility, precip, pressure

Rank473of 806

measured daily2 instruments

Westport 2.5 NNWSD-BR-61

In a volunteer observer's own ground/2.5 mi away/1,385 ft/55 ft above here

precip, snowfall, snow depth

Rank-

Westport 2NWWPTS2

At a cooperative observer's station/2.5 mi away/1,378 ft/48 ft above here

snowfall, snow depth, precip, high, low

Rank451of 806

Station report

The weather at Aberdeen, drawn

The nearest airport reporting now, 14.2 mi from Westport, South Dakota. From its report of Oct 16, 2026, 4:53 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 1,600 ft, broken at 2,000 ft, overcast at 4,000 ft; the ceiling is 2,000 ft.

Section of the sky over Aberdeen, height above the station to scale: a few clouds cloud with its base at 1,600 feet, broken cloud with its base at 2,000 feet, overcast cloud with its base at 4,000 feet, the ceiling at 2,000 feet.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ABRFIG. A THE SKY OVER ABERDEENSECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 1,600 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 2,000 FTTITLEAberdeen, the skySTATION REPORT · ASOS ABRTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-ABR-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

42.0 F with a dew point of 38.0 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up; the lowest cloud reported is at 1,600 ft.

Chart of the air at Aberdeen: temperature 42.0 degrees Fahrenheit and dew point 38.0, 86 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station, against the lowest cloud reported at 1,600 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ABRFIG. B THE AIR AT ABERDEENTHE 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 FSATURATES 900 FT ABOVE THE STATION, AT 37.1 FLOWEST CLOUD REPORTED, FEW 1,600 FTTEMPERATURE 42.0 FDEW POINT 38.0 FSPREAD 4.0 FRELATIVE HUMIDITY 86 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 POINTTITLEAberdeen, the airSTATION REPORT · ASOS ABRTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-ABR-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (360 degrees) at 18 mph, gusting 29 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 55 mph.

Plan of the wind at Aberdeen, north up: blowing from 360 degrees, the north, at 18 miles an hour, gusting 29; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ABRFIG. C THE WIND AT ABERDEENPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 360°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 29 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEAberdeen, the windSTATION REPORT · ASOS ABRTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-ABR-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Westport 2NW (WPTS2), 2.5 miles from here, read 15 Oct, 07:00. measured daily

Elsewhere in South Dakota

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

Near Westport

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

Near Westport

River and lake gauges