Storm Station
Lake Poinsett, South Dakota
63°
Overcast· Feels like 63°·Light breeze 5 mph SSE
Areas of fog. Cloudy. Low around 58, with temperatures rising to around 63 overnight. Wind around 0 mph.
-UV
-Air quality
97%Humidity
94%Cloud

What is measuring near here

The 5 instruments nearest Lake Poinsett, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.1 miles away.

measured now3 instruments

Sd RWIS AlsvilleSD610

Beside a road/2.3 mi away/1,683 ft/23 ft below here

temp, pavement temp, wind, visibility, precip

Rank319of 427

WatertownATY

At an airfield/22.4 mi away/1,725 ft/19 ft above here

temp, wind, gust, visibility, precip, pressure

Rank17of 427

Big Sioux River 3 NW WatertownWBSS2

At a river or reservoir gauge/24.2 mi away/1,726 ft/20 ft above here

temp, wind, gust, humidity, pressure

Rank121of 427

measured daily2 instruments

Lake Norden 4.3 ENESD-HM-8

In a volunteer observer's own ground/2.1 mi away/1,670 ft/36 ft below here

precip, snowfall, snow depth

Rank-

Hayti 1WHYTS2

At a cooperative observer's station/8.6 mi away/1,680 ft/26 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Watertown, drawn

The nearest airport reporting now, 22.4 mi from Lake Poinsett. From its report of Sep 27, 2026, 4:08 AM local time: 3 of its 6 sheets.

The sky

Overcast at 400 ft; the ceiling is 400 ft; visibility 7 mi.

Section of the sky over Watertown, height above the station to scale: overcast cloud with its base at 400 feet, the ceiling at 400 feet, and visibility of 7 mi.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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 400 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 400 FTVISIBILITY, MILES: 7 MI0510TITLEWatertown, the skySTATION REPORT · ASOS ATYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-ATY-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

63.0 F with a dew point of 62.0 F, 97 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 200 ft up; the lowest cloud reported is at 400 ft.

Chart of the air at Watertown: temperature 63.0 degrees Fahrenheit and dew point 62.0, 97 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 200 feet above the station, against the lowest cloud reported at 400 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 STATION01,0002,0003,00050 F60 F70 FSATURATES 200 FT ABOVE THE STATION, AT 61.7 FLOWEST CLOUD REPORTED, OVC 400 FTTEMPERATURE AND DEW POINT 63.0 F, 62.0 FRELATIVE HUMIDITY 97 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 6DATE2026-09-27IDSR-ATY-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Watertown, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, 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 STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEWatertown, the windSTATION REPORT · ASOS ATYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-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

0in

Snow on the ground

Measured at Hayti 1W (HYTS2), 8.6 miles from here, read 25 Sep, 08:00. measured daily

Elsewhere in South Dakota

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

Near Lake Poinsett

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