Storm Station
Sign in

Agar, South Dakota

Town in Sully County, South Dakota

Air quality

The air at Agar

Index 26, good, led by fine particles. Read at 3 AM from its reporting area, Pierre (SD), 34 miles off.

26Good
  • Fine particles (PM2.5)26Good-

The days ahead

Yesterday measured 27, good.

Smoke, the next 40 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Agar

0.02 in in the last 24 hours, 0.23 in over the last 3 days, to Fri 3 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.02in
Last 3 days
0.23in

Visibility

How far you can see at Agar, the next 40 hours

Visibility stays 9 miles or more through Sat 7 PM, lowest 10 miles Fri 8 AM.

FriSat

On the radar over Agar, South DakotaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Agar, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now4 instruments

Sd RWIS AgarSD501

Beside a road/4.1 mi away/1,886 ft/32 ft above here

temp, pavement temp, wind, visibility, precip

Rank775of 806

Onida98D

At an airfield/9.6 mi away/1,870 ft/16 ft above here

temp, wind, gust, visibility, precip, pressure

Rank700of 806

Blunt 6ENEBLNS2

At a river or reservoir gauge/22.1 mi away/1,722 ft/132 ft below here

temp, wind, gust, humidity, pressure

Rank-

measured daily2 instruments

Agar 0.7 NESD-SL-16

In a volunteer observer's own ground/0.7 mi away/1,882 ft/28 ft above here

precip, snowfall, snow depth

Rank-

Pierre-27MI.NeODAS2

At a cooperative observer's station/8.2 mi away/1,837 ft/17 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Onida, drawn

The nearest airport reporting now, 9.6 mi from Agar, South Dakota. From its report of Oct 16, 2026, 3:55 AM local time: 3 of its 6 sheets.

The sky

Scattered at 2,100 ft, broken at 3,300 ft, overcast at 4,000 ft; the ceiling is 3,300 ft; visibility 10 mi or more.

Section of the sky over Onida, height above the station to scale: scattered cloud with its base at 2,100 feet, broken cloud with its base at 3,300 feet, overcast cloud with its base at 4,000 feet, the ceiling at 3,300 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 98DFIG. A THE SKY OVER ONIDASECTION, 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 STATION01,0002,0003,0004,0005,0006,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 4,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 3,300 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYSCT 2,100 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYCEILING 3,300 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEOnida, the skySTATION REPORT · ASOS 98DTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-98D-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

41.0 F with a dew point of 41.0 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 2,100 ft.

Chart of the air at Onida: temperature 41.0 degrees Fahrenheit and dew point 41.0, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 2,100 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 98DFIG. B THE AIR AT ONIDATHE 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 FSATURATED AT THE GROUNDLOWEST CLOUD REPORTED, SCT 2,100 FTTEMPERATURE AND DEW POINT 41.0 F, 41.0 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 POINTTITLEOnida, the airSTATION REPORT · ASOS 98DTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-98D-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (340 degrees) at 26 mph, gusting 33 mph: force 6, a strong breeze on the Beaufort scale. The strongest gust today was 46 mph.

Plan of the wind at Onida, north up: blowing from 340 degrees, the north northwest, at 26 miles an hour, gusting 33; beside it the Beaufort scale from calm to hurricane force, force 6, strong breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT 98DFIG. C THE WIND AT ONIDAPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 340°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE25NOW, 26 MPH7NEAR GALE32GUST, 33 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOnida, the windSTATION REPORT · ASOS 98DTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-98D-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Pierre-27MI.Ne (ODAS2), 8.2 miles from here, read 11 Oct, 23:59. measured daily

Elsewhere in South Dakota

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

Near Agar

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

Near Agar

River and lake gauges