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Williston, South Carolina

Town in Barnwell County, South Carolina

Air quality

The air at Williston

Index 77, moderate, led by fine particles. Read at 5 AM from its reporting area, Aiken-Augusta - SC and GA (SC), 32 miles off.

77Moderate
  • Fine particles (PM2.5)77Moderate-
  • Ozone25Good23 ppb21.6 mi

The days ahead

Yesterday measured 80, moderate.

Smoke, the next 46 hours

Smoke near the ground peaks at index 60, moderate, Fri 2 PM.

FriSat

Precipitation

What has fallen at Williston

None in the last 3 days, to Fri 4 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 Williston, the next 46 hours

Visibility stays 7 miles or more through Sun 2 AM, lowest 8 miles Fri 5 AM.

FriSat

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

What is measuring near here

The 7 instruments nearest Williston, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now5 instruments

BlackvilleBLVS1

At a river or reservoir gauge/6.4 mi away/338 ft/1 ft above here

temp, wind, gust, humidity, pressure

Rank851of 1,128

BarnwellBNL

At an airfield/10.1 mi away/246 ft/91 ft below here

temp, wind, gust, visibility, precip, pressure

Rank218of 1,128

US-25 @ I-20SC014

Beside a road/31.4 mi away/499 ft/162 ft above here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

Barnwell 5 ENEBNLS1

At a cooperative observer's station/14.5 mi away/266 ft/71 ft below here

snowfall, snow depth, precip, high, low

Rank171of 1,128

Station report

The weather at Barnwell, drawn

The nearest airport reporting now, 10.1 mi from Williston, South Carolina. From its report of Oct 16, 2026, 5:15 AM local time: 3 of its 6 sheets.

The sky

Scattered at 4,800 ft; visibility 6 mi.

Section of the sky over Barnwell, height above the station to scale: scattered cloud with its base at 4,800 feet, and visibility of 6 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BNLFIG. A THE SKY OVER BARNWELLSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,0008,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETSCT 4,800 FTSCATTERED, 3 TO 4 EIGHTHS OF THE SKYVISIBILITY, MILES: 6 MI0510TITLEBarnwell, the skySTATION REPORT · ASOS BNLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-BNL-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

66.2 F with a dew point of 66.2 F, 100 per cent relative humidity. The air is saturated at the ground; the lowest cloud reported is at 4,800 ft.

Chart of the air at Barnwell: temperature 66.2 degrees Fahrenheit and dew point 66.2, 100 per cent relative humidity; the air saturated at the ground, against the lowest cloud reported at 4,800 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BNLFIG. B THE AIR AT BARNWELLTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 FSATURATED AT THE GROUNDABOVE THIS SHEET: LOWEST CLOUD REPORTED, SCT 4,800 FTTEMPERATURE AND DEW POINT 66.2 F, 66.2 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 POINTTITLEBarnwell, the airSTATION REPORT · ASOS BNLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-BNL-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Barnwell, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT BNLFIG. C THE WIND AT BARNWELLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEBarnwell, the windSTATION REPORT · ASOS BNLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-BNL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Barnwell 5 ENE (BNLS1), 14.5 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in South Carolina

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

Near Williston

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

Near Williston

River and lake gauges