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Angostura, South Dakota

Community in Fall River County, South Dakota

Air quality

The air at Angostura

Index 37, good, led by ozone. Read at 10 PM from its reporting area, Wind Cave (SD), 17 miles off.

37Good
  • Fine particles (PM2.5)34Good16.9 mi
  • Ozone37Good38 ppb16.9 mi
  • Coarse particles (PM10)6Good16.9 mi

The days ahead

Yesterday measured 32, good.

Smoke, the next 44 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Angostura

0.38 in in the last 24 hours, 0.52 in over the last 3 days, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.38in
Last 3 days
0.52in

Visibility

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

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

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

What is measuring near here

The 5 instruments nearest Angostura, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.7 miles away.

measured now3 instruments

CusterCUT

At an airfield/30.4 mi away/5,534 ft/2,134 ft above here

temp, wind, gust, visibility, precip, pressure

Rank668of 806

measured daily2 instruments

Hot Springs 3.6 ESESD-FR-44

In a volunteer observer's own ground/6.0 mi away/3,311 ft/89 ft below here

precip, snowfall, snow depth

Rank-

OralORLS2

At a cooperative observer's station/8.7 mi away/2,982 ft/418 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Custer, drawn

The nearest airport reporting now, 30.4 mi from Angostura, South Dakota. From its report of Oct 15, 2026, 10:53 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 Custer, 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 CUTFIG. A THE SKY OVER CUSTERSECTION, 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 MORE0510TITLECuster, the skySTATION REPORT · ASOS CUTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CUT-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

32.0 F with a dew point of 20.0 F, 61 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,700 ft up.

Chart of the air at Custer: temperature 32.0 degrees Fahrenheit and dew point 20.0, 61 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CUTFIG. B THE AIR AT CUSTERTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00010 F20 F30 F40 FSATURATES 2,700 FT ABOVE THE STATION, AT 17.5 FTEMPERATURE 32.0 FDEW POINT 20.0 FSPREAD 12.0 FRELATIVE HUMIDITY 61 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 POINTTITLECuster, the airSTATION REPORT · ASOS CUTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CUT-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 14 mph, gusting 30 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 51 mph.

Plan of the wind at Custer, north up: blowing from 350 degrees, the north, at 14 miles an hour, gusting 30; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CUTFIG. C THE WIND AT CUSTERPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 14 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 30 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLECuster, the windSTATION REPORT · ASOS CUTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CUT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Oral (ORLS2), 8.7 miles from here, read 10 Oct, 07:00. measured daily

Elsewhere in South Dakota

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

Near Angostura

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

Near Angostura

River and lake gauges