Storm Station
Fort Thompson, South Dakota
65°
Partly cloudy· Feels like 65°·Light breeze 5 mph SE
Areas of fog. Mostly cloudy. Low around 58, with temperatures rising to around 62 overnight. East wind around 8 mph.
-UV
-Air quality
97%Humidity
48%Cloud

What is measuring near here

The 5 instruments nearest Fort Thompson, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.4 miles away.

measured now3 instruments

Fort Thompson [CCOOP]LKSS2

At a river or reservoir gauge/1.4 mi away/1,453 ft/12 ft above here

temp, wind, gust, humidity, pressure

Rank424of 427

Sd RWIS Lees CornerSD616

Beside a road/5.7 mi away/1,699 ft/258 ft above here

temp, pavement temp, wind, visibility, precip

Rank295of 427

Chamberlain9V9

At an airfield/21.8 mi away/1,672 ft/231 ft above here

temp, wind, gust, visibility, precip, pressure

Rank4of 427

measured daily2 instruments

Fort Thompson 6.0 NSD-BF-3

In a volunteer observer's own ground/4.9 mi away/1,613 ft/172 ft above here

precip, snowfall, snow depth

Rank-

Gann Valley 3NNEGNVS2

At a cooperative observer's station/23.1 mi away/1,647 ft/206 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Chamberlain, drawn

The nearest airport reporting now, 21.8 mi from Fort Thompson. From its report of Sep 27, 2026, 3:15 AM local time: 3 of its 6 sheets.

The sky

Overcast at 300 ft; the ceiling is 300 ft; visibility 1/2 mi.

Section of the sky over Chamberlain, height above the station to scale: overcast cloud with its base at 300 feet, the ceiling at 300 feet, and visibility of 1/2 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 9V9FIG. A THE SKY OVER CHAMBERLAINSECTION, 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 300 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 300 FTVISIBILITY, MILES: 1/2 MI0510TITLEChamberlain, the skySTATION REPORT · ASOS 9V9TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-9V9-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

64.0 F with a dew point of 64.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 300 ft.

Chart of the air at Chamberlain: temperature 64.0 degrees Fahrenheit and dew point 64.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 300 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 9V9FIG. B THE AIR AT CHAMBERLAINTHE 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 300 FTTEMPERATURE AND DEW POINT 64.0 F, 64.0 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 POINTTITLEChamberlain, the airSTATION REPORT · ASOS 9V9TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-9V9-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Chamberlain, 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 9V9FIG. C THE WIND AT CHAMBERLAINPLAN, 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 FORCE73TITLEChamberlain, the windSTATION REPORT · ASOS 9V9TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-9V9-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

-in

Snow on the ground

Elsewhere in South Dakota

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

Near Fort Thompson

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