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Porcupine, South Dakota

Community in Oglala Lakota County, South Dakota

Air quality

The air at Porcupine

Index 39, good, led by ozone. Read at 11 PM from its reporting area, Wind Cave (SD), 59 miles off.

39Good
  • Fine particles (PM2.5)37Good-
  • Ozone39Good-
  • Coarse particles (PM10)6Good-

The days ahead

Yesterday measured 39, good.

Smoke, the next 44 hours

Little smoke near the ground through Sun 7 PM: the index from smoke stays at 6 or under.

SatSun

Precipitation

What has fallen at Porcupine

None in the last 24 hours; 0.69 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
0.69in

Visibility

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

Visibility stays 10 miles or more through Sun 7 PM.

SatSun

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

What is measuring near here

The 5 instruments nearest Porcupine, 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

Porcupine RAWSPRGS2

A remote fire weather station/4.7 mi away/3,642 ft/533 ft above here

temp, wind, gust, humidity, pressure

Rank116of 817

Pine RidgeIEN

At an airfield/21.4 mi away/3,310 ft/201 ft above here

temp, wind, gust, visibility, precip, pressure

Rank743of 817

measured daily2 instruments

Porcupine 7.3 WNWSD-OL-8

In a volunteer observer's own ground/5.4 mi away/2,891 ft/218 ft below here

precip, snowfall, snow depth

Rank-

KyleKYLS2

At a cooperative observer's station/14.0 mi away/2,941 ft/168 ft below here

snowfall, snow depth, precip, high, low

Rank26of 817

Station report

The weather at Pine Ridge, drawn

The nearest airport reporting now, 21.4 mi from Porcupine, South Dakota. From its report of Oct 16, 2026, 10:52 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 Pine Ridge, 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 IENFIG. A THE SKY OVER PINE RIDGESECTION, 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 MORE0510TITLEPine Ridge, the skySTATION REPORT · ASOS IENTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-IEN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

44.0 F with a dew point of 24.0 F, 45 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 4,500 ft up.

Chart of the air at Pine Ridge: temperature 44.0 degrees Fahrenheit and dew point 24.0, 45 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 4,500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT IENFIG. B THE AIR AT PINE RIDGETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00010 F20 F30 F40 F50 FSATURATES 4,500 FT ABOVE THE STATION, AT 19.9 FTEMPERATURE 44.0 FDEW POINT 24.0 FSPREAD 20.0 FRELATIVE HUMIDITY 45 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 POINTTITLEPine Ridge, the airSTATION REPORT · ASOS IENTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-IEN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (230 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 35 mph.

Plan of the wind at Pine Ridge, north up: blowing from 230 degrees, the southwest, at 9 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 IENFIG. C THE WIND AT PINE RIDGEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 230°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEPine Ridge, the windSTATION REPORT · ASOS IENTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-IEN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Kyle (KYLS2), 14.0 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in South Dakota

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

Near Porcupine

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

Near Porcupine

River and lake gauges