Storm Station
Hermosa, South Dakota
63°
Clear· Feels like 63°·Light air 4 mph NNW
Partly cloudy, with a low around 52. Northwest wind 3 to 8 mph, with gusts as high as 18 mph.
-UV
32Air quality
52%Humidity
4%Cloud

What is measuring near here

The 5 instruments nearest Hermosa, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now3 instruments

Custer State Park RAWSCSPS2

A remote fire weather station/11.1 mi away/3,967 ft/649 ft above here

temp, wind, gust, humidity, pressure

Rank118of 427

Sd RWIS Rapid CitySD608

Beside a road/11.2 mi away/4,324 ft/1,006 ft above here

temp, pavement temp, wind, visibility, precip

Rank404of 427

Rapid CityRAP

At an airfield/15.7 mi away/3,165 ft/153 ft below here

temp, wind, gust, visibility, precip, pressure

Rank22of 427

measured daily2 instruments

Hermosa 0.3 ENESD-CS-17

In a volunteer observer's own ground/0.4 mi away/3,294 ft/24 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Rapid City, drawn

The nearest airport reporting now, 15.7 mi from Hermosa. From its report of Sep 27, 2026, 12:52 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 Rapid City, 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 RAPFIG. A THE SKY OVER RAPID CITYSECTION, 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 MORE0510TITLERapid City, the skySTATION REPORT · ASOS RAPTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-RAP-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

57.0 F with a dew point of 48.0 F, 72 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up.

Chart of the air at Rapid City: temperature 57.0 degrees Fahrenheit and dew point 48.0, 72 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RAPFIG. B THE AIR AT RAPID CITYTHE 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 F70 FSATURATES 2,100 FT ABOVE THE STATION, AT 46.0 FTEMPERATURE 57.0 FDEW POINT 48.0 FSPREAD 9.0 FRELATIVE HUMIDITY 72 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 POINTTITLERapid City, the airSTATION REPORT · ASOS RAPTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-RAP-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Rapid City, north up: blowing from 350 degrees, the north, at 9 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RAPFIG. C THE WIND AT RAPID CITYPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLERapid City, the windSTATION REPORT · ASOS RAPTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-RAP-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Mount Rushmore National Memorial (RNMS2), 13.2 miles from here, read 26 Sep, 23:59. measured daily

Elsewhere in South Dakota

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

Near Hermosa

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