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Hill City, South Dakota

City in Pennington County, South Dakota

Air quality

The air at Hill City

Index 44, good, led by coarse particles. Read at 8 PM from its reporting area, Rapid City (SD), 18 miles off.

44Good
  • Fine particles (PM2.5)23Good-
  • Ozone32Good35 ppb20.1 mi
  • Coarse particles (PM10)44Good20.1 mi

The days ahead

Yesterday measured 16, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 12 PM.

ThuFriSat

Precipitation

What has fallen at Hill City

None in the last 3 days, to Thu 7 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Hill City, the next 41 hours

Visibility stays 10 miles or more through Sat 12 PM.

ThuFriSat

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

What is measuring near here

The 6 instruments nearest Hill City, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.6 miles away.

measured now4 instruments

SD RWIS Three ForksSD067

Beside a road/3.1 mi away/4,731 ft/384 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

CusterCUT

At an airfield/13.9 mi away/5,534 ft/419 ft above here

temp, wind, gust, visibility, precip, pressure

Rank668of 806

measured daily2 instruments

Hill CityHICS2

At a cooperative observer's station/0.6 mi away/4,977 ft/138 ft below here

snowfall, snow depth, precip, high, low

Rank719of 806

Station report

The weather at Custer, drawn

The nearest airport reporting now, 13.9 mi from Hill City, South Dakota. From its report of Oct 15, 2026, 7:53 PM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 9 mi.

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 9 mi.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: 9 MI0510TITLECuster, 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

33.0 F with a dew point of 18.0 F, 54 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,400 ft up.

Chart of the air at Custer: temperature 33.0 degrees Fahrenheit and dew point 18.0, 54 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,400 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 STATION01,0002,0003,0004,0005,0000 F10 F20 F30 F40 FSATURATES 3,400 FT ABOVE THE STATION, AT 14.9 FTEMPERATURE 33.0 FDEW POINT 18.0 FSPREAD 15.0 FRELATIVE HUMIDITY 54 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 16 mph, gusting 33 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 40 mph.

Plan of the wind at Custer, north up: blowing from 350 degrees, the north, at 16 miles an hour, gusting 33; 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, 16 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE32GUST, 33 MPH8GALE399STRONG 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

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Snow on the ground

Elsewhere in South Dakota

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

Near Hill City

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

Near Hill City

River and lake gauges