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Lemmon, South Dakota

City in Perkins County, South Dakota

Precipitation

What has fallen at Lemmon

0.15 in in the last 24 hours, 0.18 in over the last 3 days, to Thu 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.15in
Last 3 days
0.18in

Visibility

How far you can see at Lemmon, the next 44 hours

Visibility stays 7 miles or more through Sat 6 PM, lowest 8 miles Fri 4 AM.

FriSat

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

What is measuring near here

The 4 instruments nearest Lemmon, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now2 instruments

SD RWIS LemmonSD038

Beside a road/2.7 mi away/2,582 ft/10 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

LemmonLEMS2

At a cooperative observer's station/0.3 mi away/2,566 ft/6 ft below here

snowfall, snow depth, precip, high, low

Rank17of 806

Lemmon 7.3 SSD-PK-34

In a volunteer observer's own ground/7.4 mi away/2,436 ft/136 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Grand River AT Shadehill Reservoir, drawn

The nearest instrument reporting now, 13.0 mi from Lemmon, South Dakota. From its report of Oct 15, 2026, 10:15 PM local time: 3 of its 3 sheets.

The column

At 2,224 ft above sea level, 8 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 27.59 inHg and the temperature at 51.1 F.

Section from sea level of where Grand River AT Shadehill Reservoir stands in the atmosphere, height to scale: the station 2,224 feet above sea level with 8 per cent of the air below it; the standard atmosphere's pressure there, 27.59 inches of mercury, and temperature, 51.1 degrees Fahrenheit.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SHAS2FIG. D WHERE GRAND RIVER AT SHADEHILL RESERVOIR 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 AT SHADEHILL RESERVOIR8 PER CENT OF THE AIR BELOW IT2,224 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 HERE27.59 inHgSTANDARD TEMPERATURE HERE51.1 FTITLEGrand River AT Shadehill Reservoir, the columnSTATION REPORT · DCP SHAS2TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 3DATE2026-10-16IDSR-SHAS2-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 16 the noon sun stands 35 degrees above the horizon at 45.75 N, and the day is 10 h 44 min long. Level ground there takes 58 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Grand River AT Shadehill Reservoir, angles true: on Oct 16 it stands 35 degrees above the horizon, against 68 at the June solstice, 44 at the equinoxes and 21 at the December solstice; the day is 10 h 44 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SHAS2FIG. E THE SUN AT GRAND RIVER AT SHADEHILL RESERVOIRELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 68°EQUINOXES 44°DECEMBER SOLSTICE 21°OCT 16, 35°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 44 MINLEVEL GROUND TAKES 58 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 45.75 N; THE SUN'S DECLINATION -9.1°TITLEGrand River AT Shadehill Reservoir, the sunSTATION REPORT · DCP SHAS2TYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 2 of 3DATE2026-10-16IDSR-SHAS2-2DRAWN AS linework on paperSOURCES FB-ENG-007

The instrument

A data collection platform, 2,224 ft above sea level. Its report of Oct 15, 2026, 10:15 PM local time is written on the sensors that made it.

Elevation of a data collection platform, Grand River AT Shadehill Reservoir, each sensor drawn and labelled with what it read: antenna, sending by satellite, last heard oct 15, 2026, 10:15 pm local time; precipitation gauge, 0.00 in today.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT SHAS2FIG. F THE INSTRUMENTELEVATION OF A DATA COLLECTION PLATFORM, EACH SENSOR WITH WHAT IT READ, OCT 15, 2026, 10:15 PM LOCAL TIMEANTENNA, SENDING BY SATELLITELAST HEARD OCT 15, 2026, 10:15 PM LOCAL TIMEAIR TEMPERATURE-PRECIPITATION GAUGE0.00 IN TODAYSCHEMATIC; THE SPACING BETWEEN SENSORS IS NOT TO SCALETITLEGrand River AT Shadehill Reservoir, the instrumentSTATION REPORT · DCP SHAS2TYPEELEVATIONSCALESCHEMATICREVAS REPORTED SHEET 3 of 3DATE2026-10-16IDSR-SHAS2-3DRAWN AS linework on paperSOURCES FB-INS-001

The full report of Grand River AT Shadehill Reservoir, in 3 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Lemmon (LEMS2), 0.3 miles from here, read 15 Oct, 16:23. measured daily

Elsewhere in South Dakota

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

Near Lemmon

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

Near Lemmon

River and lake gauges