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Waterloo, South Carolina

Town in Laurens County, South Carolina

Air quality

The air at Waterloo

Index 38, good, led by fine particles. Read at 1 AM from its reporting area, Greenville-Spartanburg (SC), 40 miles off.

38Good
  • Fine particles (PM2.5)38Good-
  • Ozone29Good-
  • Coarse particles (PM10)9Good-

The days ahead

Yesterday measured 68, moderate.

Smoke, the next 43 hours

No smoke near the ground through Sun 8 PM.

SatSun

Precipitation

What has fallen at Waterloo

None in the last 3 days, to Sat 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at Waterloo, the next 43 hours

Visibility stays 9 miles or more through Sun 8 PM, lowest 10 miles Sat 4 AM.

SatSun

On the radar over Waterloo, South CarolinaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Waterloo, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.7 miles away.

measured now4 instruments

I-385 @ US-221SC010

Beside a road/14.2 mi away/715 ft/113 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Waterloo 2.7 WNWSC-LR-38

In a volunteer observer's own ground/2.7 mi away/455 ft/147 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Greenwood County Airport, drawn

The nearest airport reporting now, 9.2 mi from Waterloo, South Carolina. From its report of Oct 17, 2026, 1:56 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 6,500 ft, broken at 8,000 ft, overcast at 10,000 ft; the ceiling is 8,000 ft; visibility 10 mi or more.

Section of the sky over Greenwood County Airport, height above the station to scale: a few clouds cloud with its base at 6,500 feet, broken cloud with its base at 8,000 feet, overcast cloud with its base at 10,000 feet, the ceiling at 8,000 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GRDFIG. A THE SKY OVER GREENWOOD COUNTY AIRPORTSECTION, 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 STATION02,5005,0007,50010,00012,50015,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 10,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 8,000 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYFEW 6,500 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYCEILING 8,000 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEGreenwood County Airport, the skySTATION REPORT · ASOS GRDTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-GRD-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-013, FB-SKY-014

The air

69.0 F with a dew point of 58.0 F, 68 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,500 ft up; the lowest cloud reported is at 6,500 ft.

Chart of the air at Greenwood County Airport: temperature 69.0 degrees Fahrenheit and dew point 58.0, 68 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,500 feet above the station, against the lowest cloud reported at 6,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GRDFIG. B THE AIR AT GREENWOOD COUNTY AIRPORTTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION02,0004,0006,0008,00040 F50 F60 F70 F80 FSATURATES 2,500 FT ABOVE THE STATION, AT 55.5 FLOWEST CLOUD REPORTED, FEW 6,500 FTTEMPERATURE 69.0 FDEW POINT 58.0 FSPREAD 11.0 FRELATIVE HUMIDITY 68 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 POINTTITLEGreenwood County Airport, the airSTATION REPORT · ASOS GRDTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-GRD-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the west (280 degrees) at 10 mph, gusting 23 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 23 mph.

Plan of the wind at Greenwood County Airport, north up: blowing from 280 degrees, the west, at 10 miles an hour, gusting 23; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT GRDFIG. C THE WIND AT GREENWOOD COUNTY AIRPORTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 280°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE19GUST, 23 MPH6STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEGreenwood County Airport, the windSTATION REPORT · ASOS GRDTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-GRD-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Greenwood 8 NE (GWDS1), 6.9 miles from here, read 16 Oct, 08:00. measured daily

Elsewhere in South Carolina

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

Near Waterloo

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

Near Waterloo

River and lake gauges