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Naples, South Dakota

Town in Clark County, South Dakota

Air quality

The air at Naples

Index 23, good, led by fine particles. Read at 7 AM from its reporting area, Watertown (SD), 21 miles off.

23Good
  • Fine particles (PM2.5)23Good20.7 mi
  • Ozone22Good24 ppb20.7 mi
  • Coarse particles (PM10)9Good20.7 mi

The days ahead

Yesterday measured 28, good.

Smoke, the next 42 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Naples

0.09 in in the last 24 hours, 0.17 in over the last 3 days, to Fri 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.09in
Last 3 days
0.17in

Visibility

How far you can see at Naples, the next 42 hours

Visibility stays 10 miles or more through Sun 1 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Naples, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.5 miles away.

measured now3 instruments

WatertownATY

At an airfield/20.2 mi away/1,725 ft/64 ft below here

temp, wind, gust, visibility, precip, pressure

Rank123of 806

measured daily2 instruments

Hazel 4.2 WNWSD-HM-17

In a volunteer observer's own ground/2.5 mi away/1,796 ft/7 ft above here

precip, snowfall, snow depth

Rank-

Brookings-38MI.NwBRYS2

At a cooperative observer's station/12.3 mi away/1,847 ft/58 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Watertown, drawn

The nearest airport reporting now, 20.2 mi from Naples, South Dakota. From its report of Oct 16, 2026, 8:13 AM local time: 3 of its 6 sheets.

The sky

Scattered at 2,500 ft; visibility 10 mi or more.

Section of the sky over Watertown, height above the station to scale: scattered cloud with its base at 2,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ATYFIG. A THE SKY OVER WATERTOWNSECTION, 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 STATION05001,0001,5002,0002,5003,0003,5004,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETSCT 2,500 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEWatertown, the skySTATION REPORT · ASOS ATYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-ATY-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

37.0 F with a dew point of 30.0 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up; the lowest cloud reported is at 2,500 ft.

Chart of the air at Watertown: temperature 37.0 degrees Fahrenheit and dew point 30.0, 76 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station, against the lowest cloud reported at 2,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ATYFIG. B THE AIR AT WATERTOWNTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00020 F30 F40 F50 FSATURATES 1,600 FT ABOVE THE STATION, AT 28.5 FLOWEST CLOUD REPORTED, SCT 2,500 FTTEMPERATURE 37.0 FDEW POINT 30.0 FSPREAD 7.0 FRELATIVE HUMIDITY 76 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 POINTTITLEWatertown, the airSTATION REPORT · ASOS ATYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-ATY-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 20 mph, gusting 32 mph: force 5, a fresh breeze on the Beaufort scale. The strongest gust today was 49 mph.

Plan of the wind at Watertown, north up: blowing from 350 degrees, the north, at 20 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 ATYFIG. C THE WIND AT WATERTOWNPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE19NOW, 20 MPH6STRONG BREEZE257NEAR GALE32GUST, 32 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWatertown, the windSTATION REPORT · ASOS ATYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-ATY-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Watertown, 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 Naples

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

Near Naples

River and lake gauges