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Boulder Canyon, South Dakota

Community in Lawrence County, South Dakota

Air quality

The air at Boulder Canyon

Index 32, good, led by ozone. Read at 9 PM from its reporting area, Rapid City (SD), 26 miles off.

32Good
  • Ozone32Good-
  • Coarse particles (PM10)6Good-

The days ahead

Yesterday measured 16, good.

Smoke, the next 46 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at Boulder Canyon

0.04 in in the last 24 hours, and none in the 2 days before, to Thu 8 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.04in

Visibility

How far you can see at Boulder Canyon, the next 46 hours

Visibility stays 10 miles or more through Sat 6 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Boulder Canyon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

Sd RWIS KirkSD585

Beside a road/8.8 mi away/5,010 ft/1,117 ft above here

temp, pavement temp, wind, visibility, precip

Rank717of 806

Sturgis49B

At an airfield/10.9 mi away/3,232 ft/661 ft below here

temp, wind, gust, visibility, precip, pressure

Rank3of 806

measured daily2 instruments

Sturgis 1.4 SSWSD-MD-59

In a volunteer observer's own ground/3.7 mi away/3,640 ft/253 ft below here

precip, snowfall, snow depth

Rank-

Fort MeadeFTMS2

At a cooperative observer's station/5.9 mi away/3,297 ft/596 ft below here

snowfall, snow depth, precip, high, low

Rank62of 806

Station report

The weather at Sturgis, drawn

The nearest airport reporting now, 10.9 mi from Boulder Canyon, South Dakota. From its report of Oct 15, 2026, 9:15 PM local time: 3 of its 6 sheets.

The sky

Overcast at 5,500 ft; the ceiling is 5,500 ft; visibility 10 mi or more.

Section of the sky over Sturgis, height above the station to scale: overcast cloud with its base at 5,500 feet, the ceiling at 5,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 49BFIG. A THE SKY OVER STURGISSECTION, 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 STATION02,5005,0007,50010,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 5,500 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 5,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESturgis, the skySTATION REPORT · ASOS 49BTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-49B-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

42.8 F with a dew point of 26.6 F, 52 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,700 ft up; the lowest cloud reported is at 5,500 ft.

Chart of the air at Sturgis: temperature 42.8 degrees Fahrenheit and dew point 26.6, 52 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,700 feet above the station, against the lowest cloud reported at 5,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 49BFIG. B THE AIR AT STURGISTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,0007,00010 F20 F30 F40 F50 FSATURATES 3,700 FT ABOVE THE STATION, AT 23.2 FLOWEST CLOUD REPORTED, OVC 5,500 FTTEMPERATURE 42.8 FDEW POINT 26.6 FSPREAD 16.2 FRELATIVE HUMIDITY 52 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 POINTTITLESturgis, the airSTATION REPORT · ASOS 49BTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-49B-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west northwest (300 degrees) at 32 mph, gusting 40 mph: force 7, a near gale on the Beaufort scale. The strongest gust today was 54 mph.

Plan of the wind at Sturgis, north up: blowing from 300 degrees, the west northwest, at 32 miles an hour, gusting 40; beside it the Beaufort scale from calm to hurricane force, force 7, near gale, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 49BFIG. C THE WIND AT STURGISPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 300°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE32NOW, 32 MPH8GALE39GUST, 40 MPH9STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESturgis, the windSTATION REPORT · ASOS 49BTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-49B-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Fort Meade (FTMS2), 5.9 miles from here, read 15 Oct, 18:00. measured daily

Elsewhere in South Dakota

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

Near Boulder Canyon

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

Near Boulder Canyon

River and lake gauges