Storm Station
Eureka, South Dakota
63° 63°/55°
Fog· Feels like 63°·Light air 3 mph NNE
Areas of fog. Mostly cloudy. Low around 52, with temperatures rising to around 60 overnight. North northeast wind 5 to 8 mph.
0UV Low
18Air quality
100%Humidity
100%Cloud
Now
2:45 AM
63feels63
now, fog
Today
Sep 27
6355
19%
13mph
drizzle light
Mon
Sep 28
6855
87%
17mph
showers light
Tue
Sep 29
7659
87%
showers light
Wed
Sep 30
7858
17mph
overcast
Thu
Oct 1
6349
16mph
overcast
Fri
Oct 2
6744
19mph
overcast
Sat
Oct 3
7454
19mph
overcast
63°
63°55°
68°55°
76°59°
78°58°
63°49°
67°44°
74°54°

As of 2:45 AM in Eureka, South Dakota.

What is measuring near here

The 5 instruments nearest Eureka, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now3 instruments

Sd RWIS EurekaSD524

Beside a road/12.3 mi away/1,942 ft/55 ft above here

temp, pavement temp, wind, visibility, precip

Rank344of 427

Sand Lake RAWSLLKS2

A remote fire weather station/12.5 mi away/2,011 ft/124 ft above here

temp, wind, gust, humidity, pressure

Rank31of 427

Aberdeen 35 WNW54933

At a climate reference station/24.5 mi away/1,957 ft/70 ft above here

temp, humidity, wind, solar, precip

Rank-

measured daily2 instruments

Eureka 0.4 ENESD-MP-12

In a volunteer observer's own ground/0.2 mi away/1,891 ft/4 ft above here

precip, snowfall, snow depth

Rank-

EurekaERKS2

At a cooperative observer's station/0.3 mi away/1,870 ft/17 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Sd RWIS Eureka, drawn

The nearest instrument reporting now, 12.3 mi from Eureka. From its report of Sep 27, 2026, 2:06 AM local time: 3 of its 5 sheets.

The air

63.5 F with a dew point of 62.9 F, 98 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 100 ft up.

Chart of the air at Sd RWIS Eureka: temperature 63.5 degrees Fahrenheit and dew point 62.9, 98 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SD524FIG. B THE AIR AT SD RWIS EUREKATHE 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 100 FT ABOVE THE STATION, AT 62.7 FTEMPERATURE AND DEW POINT 63.5 F, 62.9 FRELATIVE HUMIDITY 98 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 POINTTITLESd RWIS Eureka, the airSTATION REPORT · RWIS SD524TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-09-27IDSR-SD524-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (195 degrees) at 1 mph, gusting 2 mph: force 1, a light air on the Beaufort scale. The strongest gust today was 8 mph.

Plan of the wind at Sd RWIS Eureka, north up: blowing from 195 degrees, the south southwest, at 1 miles an hour, gusting 2; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SD524FIG. C THE WIND AT SD RWIS EUREKAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 195°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 1 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLESd RWIS Eureka, the windSTATION REPORT · RWIS SD524TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-09-27IDSR-SD524-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 1,942 ft above sea level, 7 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.88 inHg and the temperature at 52.1 F; it reports 63.5 F, 11.4 F warmer than standard.

Section from sea level of where Sd RWIS Eureka stands in the atmosphere, height to scale: the station 1,942 feet above sea level with 7 per cent of the air below it; the standard atmosphere's pressure there, 27.88 inches of mercury, and temperature, 52.1 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SD524FIG. D WHERE SD RWIS EUREKA STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHERESD RWIS EUREKA7 PER CENT OF THE AIR BELOW IT1,942 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE27.88 inHgSTANDARD TEMPERATURE HERE52.1 FTEMPERATURE, REPORTED63.5 FTITLESd RWIS Eureka, the columnSTATION REPORT · RWIS SD524TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-09-27IDSR-SD524-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Sd RWIS Eureka, in 5 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 Eureka

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