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Rockport Colony, South Dakota

Community in Hanson County, South Dakota

Air quality

The air at Rockport Colony

Index 22, good, led by ozone. Read at 8 AM from its reporting area, Santee Sioux Reservation (NE), 52 miles off.

22Good
  • Ozone22Good-

The days ahead

Yesterday measured 24, good.

Smoke, the next 41 hours

No smoke near the ground through Sun 1 AM.

FriSat

Precipitation

What has fallen at Rockport Colony

0.15 in in the last 24 hours, 0.34 in over the last 3 days, to Fri 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.15in
Last 3 days
0.34in

Visibility

How far you can see at Rockport Colony, the next 41 hours

Visibility stays 10 miles or more through Sun 1 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Rockport Colony, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.6 miles away.

measured now3 instruments

MitchellMHE

At an airfield/16.5 mi away/1,298 ft/53 ft above here

temp, wind, gust, visibility, precip, pressure

Rank142of 806

measured daily2 instruments

Ethan 4.8 ENESD-HN-5

In a volunteer observer's own ground/2.6 mi away/1,323 ft/78 ft above here

precip, snowfall, snow depth

Rank-

AlexandriaALXS2

At a cooperative observer's station/6.0 mi away/1,352 ft/107 ft above here

snowfall, snow depth, precip, high, low

Rank61of 806

Station report

The weather at Mitchell, drawn

The nearest airport reporting now, 16.5 mi from Rockport Colony, South Dakota. From its report of Oct 16, 2026, 8:53 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 2,200 ft, overcast at 3,200 ft; the ceiling is 3,200 ft; visibility 10 mi or more.

Section of the sky over Mitchell, height above the station to scale: a few clouds cloud with its base at 2,200 feet, overcast cloud with its base at 3,200 feet, the ceiling at 3,200 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHEFIG. A THE SKY OVER MITCHELLSECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,200 FTOVERCAST, 8 EIGHTHS OF THE SKYFEW 2,200 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 3,200 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEMitchell, the skySTATION REPORT · ASOS MHETYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-MHE-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

42.0 F with a dew point of 35.0 F, 76 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,600 ft up; the lowest cloud reported is at 2,200 ft.

Chart of the air at Mitchell: temperature 42.0 degrees Fahrenheit and dew point 35.0, 76 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,600 feet above the station, against the lowest cloud reported at 2,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHEFIG. B THE AIR AT MITCHELLTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00020 F30 F40 F50 FSATURATES 1,600 FT ABOVE THE STATION, AT 33.5 FLOWEST CLOUD REPORTED, FEW 2,200 FTTEMPERATURE 42.0 FDEW POINT 35.0 FSPREAD 7.0 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 POINTTITLEMitchell, the airSTATION REPORT · ASOS MHETYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-MHE-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northwest (330 degrees) at 17 mph, gusting 35 mph: force 4, a moderate breeze on the Beaufort scale. The strongest gust today was 51 mph.

Plan of the wind at Mitchell, north up: blowing from 330 degrees, the north northwest, at 17 miles an hour, gusting 35; beside it the Beaufort scale from calm to hurricane force, force 4, moderate breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT MHEFIG. C THE WIND AT MITCHELLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 330°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE13NOW, 17 MPH5FRESH BREEZE196STRONG BREEZE257NEAR GALE32GUST, 35 MPH8GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEMitchell, the windSTATION REPORT · ASOS MHETYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-MHE-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Alexandria (ALXS2), 6.0 miles from here, read 16 Oct, 07:00. measured daily

Elsewhere in South Dakota

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

Near Rockport Colony

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

Near Rockport Colony

River and lake gauges