Storm Station
Brant Lake South, South Dakota
63°
Overcast· Feels like 63°·Light air 2 mph ESE
Areas of fog and patchy drizzle before noon, then a slight chance of rain showers. Cloudy, with a high near 71. East northeast wind 0 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
-UV
-Air quality
100%Humidity
93%Cloud

What is measuring near here

The 7 instruments nearest Brant Lake South, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.1 miles away.

measured now5 instruments

Sd RWIS MadisonSD636

Beside a road/8.9 mi away/1,667 ft/64 ft above here

temp, pavement temp, wind, visibility, precip

Rank312of 427

MadisonMDS

At an airfield/10.5 mi away/1,709 ft/106 ft above here

temp, wind, gust, visibility, precip, pressure

Rank354of 427

Sioux Falls 14NESUFS2

At a river or reservoir gauge/19.7 mi away/1,594 ft/9 ft below here

temp, wind, gust, humidity, pressure

Rank78of 427

Eros Data CenterS2072

At a soil climate station/20.0 mi away/1,551 ft/52 ft below here

temp, humidity, soil temp, soil moisture

Rank-

Sioux Falls 14 NNE04990

At a climate reference station/20.0 mi away/1,594 ft/9 ft below here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Wentworth 4.7 SSWSD-LK-12

In a volunteer observer's own ground/4.1 mi away/1,625 ft/22 ft above here

precip, snowfall, snow depth

Rank-

ColtonCOLS2

At a cooperative observer's station/9.0 mi away/1,631 ft/28 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Madison, drawn

The nearest airport reporting now, 10.5 mi from Brant Lake South. From its report of Sep 27, 2026, 5:55 AM local time: 3 of its 6 sheets.

The sky

Overcast at 200 ft; the ceiling is 200 ft; visibility 1/4 mi.

Section of the sky over Madison, height above the station to scale: overcast cloud with its base at 200 feet, the ceiling at 200 feet, and visibility of 1/4 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDSFIG. A THE SKY OVER MADISONSECTION, 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 200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 200 FTVISIBILITY, MILES: 1/4 MI0510TITLEMadison, the skySTATION REPORT · ASOS MDSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-MDS-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

62.6 F with a dew point of 62.6 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 200 ft.

Chart of the air at Madison: temperature 62.6 degrees Fahrenheit and dew point 62.6, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MDSFIG. B THE AIR AT MADISONTHE 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 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, OVC 200 FTTEMPERATURE AND DEW POINT 62.6 F, 62.6 FRELATIVE HUMIDITY 100 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 POINTTITLEMadison, the airSTATION REPORT · ASOS MDSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-MDS-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 Madison, 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 MDSFIG. C THE WIND AT MADISONPLAN, 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 FORCE73TITLEMadison, the windSTATION REPORT · ASOS MDSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-MDS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Colton (COLS2), 9.0 miles from here, read 20 Sep, 07:00. measured daily

Elsewhere in South Dakota

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

Near Brant Lake South

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