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McIntosh, South Dakota

City in Corson County, South Dakota

Air quality

The air at McIntosh

Index 20, good, led by ozone. Read at 9 PM from its reporting area, Bismarck (ND), 68 miles off.

20Good
  • Fine particles (PM2.5)9Good-
  • Ozone20Good-
  • Coarse particles (PM10)7Good-

The days ahead

Yesterday measured 52, moderate.

Smoke, the next 45 hours

No smoke near the ground through Sat 6 PM.

FriSat

Precipitation

What has fallen at McIntosh

0.09 in in the last 24 hours, 0.17 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.09in
Last 3 days
0.17in

Visibility

How far you can see at McIntosh, the next 45 hours

Visibility stays 9 miles or more through Sat 6 PM, lowest 9 miles Fri 8 AM.

FriSat

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

What is measuring near here

The 4 instruments nearest McIntosh, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now2 instruments

SD RWIS McLaughlinSD042

Beside a road/21.7 mi away/2,093 ft/232 ft below here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Lemmon-38MI.EMCIS2

At a cooperative observer's station/3.6 mi away/2,178 ft/147 ft below here

snowfall, snow depth, precip, high, low

Rank-

Mclaughlin 0.1 NSD-CR-16

In a volunteer observer's own ground/27.0 mi away/2,004 ft/321 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Grand River RAWS, drawn

The nearest instrument reporting now, 25.4 mi from McIntosh, South Dakota. From its report of Oct 15, 2026, 10:06 PM local time: 3 of its 5 sheets.

The air

42.0 F with a dew point of 37.2 F, 83 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,100 ft up.

Chart of the air at Grand River RAWS: temperature 42.0 degrees Fahrenheit and dew point 37.2, 83 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,100 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GRRS2FIG. B THE AIR AT GRAND RIVER RAWSTHE 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 FSATURATES 1,100 FT ABOVE THE STATION, AT 36.1 FTEMPERATURE 42.0 FDEW POINT 37.2 FSPREAD 4.8 FRELATIVE HUMIDITY 83 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 POINTTITLEGrand River RAWS, the airSTATION REPORT · DCP GRRS2TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-GRRS2-1DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northwest (315 degrees) at 33 mph, gusting 45 mph: force 7, a near gale on the Beaufort scale. The strongest gust today was 60 mph.

Plan of the wind at Grand River RAWS, north up: blowing from 315 degrees, the northwest, at 33 miles an hour, gusting 45; beside it the Beaufort scale from calm to hurricane force, force 7, near gale, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GRRS2FIG. C THE WIND AT GRAND RIVER RAWSPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 315°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE32NOW, 33 MPH8GALE39GUST, 45 MPH9STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGrand River RAWS, the windSTATION REPORT · DCP GRRS2TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-GRRS2-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008

The column

At 2,093 ft above sea level, 7 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.73 inHg and the temperature at 51.5 F; it reports 42.0 F, 9.5 F colder than standard.

Section from sea level of where Grand River RAWS stands in the atmosphere, height to scale: the station 2,093 feet above sea level with 7 per cent of the air below it; the standard atmosphere's pressure there, 27.73 inches of mercury, and temperature, 51.5 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GRRS2FIG. D WHERE GRAND RIVER RAWS 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 ATMOSPHEREGRAND RIVER RAWS7 PER CENT OF THE AIR BELOW IT2,093 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 HERE27.73 inHgSTANDARD TEMPERATURE HERE51.5 FTEMPERATURE, REPORTED42.0 FTITLEGrand River RAWS, the columnSTATION REPORT · DCP GRRS2TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-GRRS2-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Grand River RAWS, in 5 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Lemmon-38MI.E (MCIS2), 3.6 miles from here, read 11 Oct, 19:00. measured daily

Elsewhere in South Dakota

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

Near McIntosh

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

Near McIntosh

River and lake gauges