Storm Station
St. Onge, South Dakota
53° 67°/49°
Clear· Feels like 53°·Light breeze 6 mph ENE
Partly cloudy, with a low around 49. North wind around 3 mph.
0UV Low
33Air quality
64%Humidity
0%Cloud
Now
1:45 AM
53feels53
now, clear
Today
Sep 27
6749
16mph
overcast
Mon
Sep 28
7254
55%
18mph
fog
Tue
Sep 29
7756
38%
overcast
Wed
Sep 30
7554
19mph
overcast
Thu
Oct 1
6346
13mph
partly cloudy day
Fri
Oct 2
8149
overcast
Sat
Oct 3
7252
12%
24mph
overcast
53°
67°49°
72°54°
77°56°
75°54°
63°46°
81°49°
72°52°

As of 1:45 AM in St. Onge, South Dakota.

What is measuring near here

The 5 instruments nearest St. Onge, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.2 miles away.

measured now3 instruments

SpearfishSPF

At an airfield/5.4 mi away/3,892 ft/455 ft above here

temp, wind, gust, visibility, precip, pressure

Rank360of 427

Spearfish RAWSSFRS2

A remote fire weather station/7.7 mi away/4,253 ft/816 ft above here

temp, wind, gust, humidity, pressure

Rank69of 427

Sd RWIS KirkSD585

Beside a road/14.1 mi away/5,010 ft/1,573 ft above here

temp, pavement temp, wind, visibility, precip

Rank381of 427

measured daily2 instruments

Whitewood 4.2 NNWSD-LW-1

In a volunteer observer's own ground/3.2 mi away/3,638 ft/201 ft above here

precip, snowfall, snow depth

Rank-

SpearfishSPES2

At a cooperative observer's station/7.7 mi away/3,517 ft/80 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Spearfish, drawn

The nearest airport reporting now, 5.4 mi from St. Onge. From its report of Sep 27, 2026, 1:35 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Spearfish, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SPFFIG. A THE SKY OVER SPEARFISHSECTION, 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 SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLESpearfish, the skySTATION REPORT · ASOS SPFTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-SPF-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

50.0 F with a dew point of 42.8 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,700 ft up.

Chart of the air at Spearfish: temperature 50.0 degrees Fahrenheit and dew point 42.8, 76 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SPFFIG. B THE AIR AT SPEARFISHTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00030 F40 F50 F60 FSATURATES 1,700 FT ABOVE THE STATION, AT 41.2 FTEMPERATURE 50.0 FDEW POINT 42.8 FSPREAD 7.2 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 POINTTITLESpearfish, the airSTATION REPORT · ASOS SPFTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-SPF-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Spearfish, 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 SPFFIG. C THE WIND AT SPEARFISHPLAN, 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 FORCE73TITLESpearfish, the windSTATION REPORT · ASOS SPFTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-SPF-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Spearfish (SPES2), 7.7 miles from here, read 25 Sep, 09:00. measured daily

Elsewhere in South Dakota

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

Near St. Onge

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