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Chelsea, South Dakota

Town in Faulk County, South Dakota

Air quality

The air at Chelsea

Index 13, good, led by fine particles. Read at 2 AM from its reporting area, Aberdeen (SD), 24 miles off.

13Good
  • Fine particles (PM2.5)13Good-
  • Coarse particles (PM10)8Good-

The days ahead

Yesterday measured 18, good.

Smoke, the next 41 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Chelsea

0.04 in in the last 24 hours, 0.15 in over the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.04in
Last 3 days
0.15in

Visibility

How far you can see at Chelsea, the next 41 hours

Visibility stays 10 miles or more through Sat 7 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Chelsea, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.5 miles away.

measured now4 instruments

SD RWIS MelletteSD043

Beside a road/11.1 mi away/1,299 ft/49 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

Redfield1D8

At an airfield/23.6 mi away/1,302 ft/46 ft below here

temp, wind, gust, visibility, precip, pressure

Rank4of 806

measured daily2 instruments

Aberdeen-24MI.SwCHLS2

At a cooperative observer's station/0.5 mi away/1,332 ft/16 ft below here

snowfall, snow depth, precip, high, low

Rank-

Chelsea 3.8 WSD-FK-6

In a volunteer observer's own ground/3.9 mi away/1,386 ft/38 ft above here

precip, snowfall, snow depth

Rank125of 806

Station report

The weather at Redfield, drawn

The nearest airport reporting now, 23.6 mi from Chelsea, South Dakota. From its report of Oct 16, 2026, 2:55 AM local time: 3 of its 6 sheets.

The sky

Scattered at 2,500 ft, scattered at 3,000 ft, overcast at 5,500 ft; the ceiling is 5,500 ft; visibility 10 mi or more.

Section of the sky over Redfield, height above the station to scale: scattered cloud with its base at 2,500 feet, scattered cloud with its base at 3,000 feet, 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 1D8FIG. A THE SKY OVER REDFIELDSECTION, 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 SKYSCT 3,000 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYSCT 2,500 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 5,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLERedfield, the skySTATION REPORT · ASOS 1D8TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-1D8-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

44.6 F with a dew point of 41.0 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 2,500 ft.

Chart of the air at Redfield: temperature 44.6 degrees Fahrenheit and dew point 41.0, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 2,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1D8FIG. B THE AIR AT REDFIELDTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 F60 FSATURATES 800 FT ABOVE THE STATION, AT 40.2 FLOWEST CLOUD REPORTED, SCT 2,500 FTTEMPERATURE 44.6 FDEW POINT 41.0 FSPREAD 3.6 FRELATIVE HUMIDITY 87 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 POINTTITLERedfield, the airSTATION REPORT · ASOS 1D8TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-1D8-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 21 mph, gusting 32 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 44 mph.

Plan of the wind at Redfield, north up: blowing from 340 degrees, the north northwest, at 21 miles an hour, gusting 32; beside it the Beaufort scale from calm to hurricane force, force 5, fresh breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 1D8FIG. C THE WIND AT REDFIELDPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 21 MPH6STRONG BREEZE257NEAR GALE32GUST, 32 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERedfield, the windSTATION REPORT · ASOS 1D8TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-1D8-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-

Snow on the ground

Elsewhere in South Dakota

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

Near Chelsea

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

Near Chelsea

River and lake gauges