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Marion, South Dakota

City in Turner County, South Dakota

Air quality

The air at Marion

Index 52, moderate, led by fine particles. Read at 10 PM from its reporting area, Sioux Falls (SD), 29 miles off.

52Moderate
  • Fine particles (PM2.5)52Moderate-
  • Ozone19Good-
  • Coarse particles (PM10)22Good-

The days ahead

Yesterday measured 26, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Marion

0.47 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.47in
Last 3 days
0.47in

Visibility

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

Visibility stays 9 miles or more through Sat 7 PM, lowest 10 miles Fri 3 AM.

FriSat

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

What is measuring near here

The 8 instruments nearest Marion, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now6 instruments

Sioux FallsFSD

At an airfield/27.4 mi away/1,407 ft/38 ft below here

temp, wind, gust, visibility, precip, pressure

Rank141of 806

measured daily2 instruments

Marion 0.3 SESD-TR-7

In a volunteer observer's own ground/0.2 mi away/1,451 ft/6 ft above here

precip, snowfall, snow depth

Rank-

Sioux Falls-27MI.WswMARS2

At a cooperative observer's station/0.2 mi away/1,450 ft/5 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Sioux Falls, drawn

The nearest airport reporting now, 27.4 mi from Marion, South Dakota. From its report of Oct 15, 2026, 9:56 PM local time: 3 of its 6 sheets.

The sky

Overcast at 4,100 ft; the ceiling is 4,100 ft; visibility 10 mi or more.

Section of the sky over Sioux Falls, height above the station to scale: overcast cloud with its base at 4,100 feet, the ceiling at 4,100 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FSDFIG. A THE SKY OVER SIOUX FALLSSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,100 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 4,100 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESioux Falls, the skySTATION REPORT · ASOS FSDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-FSD-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

47.0 F with a dew point of 36.0 F, 65 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,500 ft up; the lowest cloud reported is at 4,100 ft.

Chart of the air at Sioux Falls: temperature 47.0 degrees Fahrenheit and dew point 36.0, 65 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,500 feet above the station, against the lowest cloud reported at 4,100 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FSDFIG. B THE AIR AT SIOUX FALLSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00020 F30 F40 F50 F60 FSATURATES 2,500 FT ABOVE THE STATION, AT 33.6 FLOWEST CLOUD REPORTED, OVC 4,100 FTTEMPERATURE 47.0 FDEW POINT 36.0 FSPREAD 11.0 FRELATIVE HUMIDITY 65 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 POINTTITLESioux Falls, the airSTATION REPORT · ASOS FSDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-FSD-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (310 degrees) at 18 mph, gusting 30 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 44 mph.

Plan of the wind at Sioux Falls, north up: blowing from 310 degrees, the northwest, at 18 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 FSDFIG. C THE WIND AT SIOUX FALLSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 310°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 30 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESioux Falls, the windSTATION REPORT · ASOS FSDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-FSD-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Sioux Falls, 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 Marion

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

Near Marion

River and lake gauges