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Bristol, South Dakota

City in Day County, South Dakota

Air quality

The air at Bristol

Index 23, good, led by fine particles. Read at 6 AM from its reporting area, Aberdeen (SD), 37 miles off.

23Good
  • Fine particles (PM2.5)23Good-
  • Coarse particles (PM10)10Good-

The days ahead

Yesterday measured 10, good.

Smoke, the next 44 hours

Little smoke near the ground through Mon 1 AM: the index from smoke stays at 6 or under.

SatSun

Precipitation

What has fallen at Bristol

None in the last 24 hours; 0.21 in over the last 3 days, to Sat 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.21in

Visibility

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

Visibility stays 10 miles or more through Mon 1 AM.

SatSun

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

What is measuring near here

The 6 instruments nearest Bristol, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.5 miles away.

measured now4 instruments

BrittonBTN

At an airfield/32.5 mi away/1,305 ft/474 ft below here

temp, wind, gust, visibility, precip, pressure

Rank392of 817

measured daily2 instruments

Andover No. 2ANVS2

At a cooperative observer's station/8.9 mi away/1,473 ft/306 ft below here

snowfall, snow depth, precip, high, low

Rank674of 817

Andover 2.9 NNWSD-DY-14

In a volunteer observer's own ground/11.0 mi away/1,400 ft/379 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Britton, drawn

The nearest airport reporting now, 32.5 mi from Bristol, South Dakota. From its report of Oct 17, 2026, 6:15 AM 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 Britton, 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 BTNFIG. A THE SKY OVER BRITTONSECTION, 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 MORE0510TITLEBritton, the skySTATION REPORT · ASOS BTNTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-BTN-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

42.8 F with a dew point of 28.4 F, 56 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 3,300 ft up.

Chart of the air at Britton: temperature 42.8 degrees Fahrenheit and dew point 28.4, 56 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 3,300 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BTNFIG. B THE AIR AT BRITTONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,00010 F20 F30 F40 F50 FSATURATES 3,300 FT ABOVE THE STATION, AT 25.4 FTEMPERATURE 42.8 FDEW POINT 28.4 FSPREAD 14.4 FRELATIVE HUMIDITY 56 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 POINTTITLEBritton, the airSTATION REPORT · ASOS BTNTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-BTN-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (200 degrees) at 18 mph, gusting 25 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Britton, north up: blowing from 200 degrees, the south southwest, at 18 miles an hour, gusting 25; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BTNFIG. C THE WIND AT BRITTONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 200°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 18 MPH5FRESH BREEZE196STRONG BREEZE25GUST, 25 MPH7NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBritton, the windSTATION REPORT · ASOS BTNTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-BTN-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Andover No. 2 (ANVS2), 8.9 miles from here, read 16 Oct, 12:00. measured daily

Elsewhere in South Dakota

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

Near Bristol

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

Near Bristol

River and lake gauges