Storm Station
Jefferson, South Carolina
62°
Clear· Feels like 62°·Calm 0 mph N
Clear, with a low around 52. North wind around 2 mph.
-UV
-Air quality
60%Humidity
2%Cloud

What is measuring near here

The 4 instruments nearest Jefferson, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now2 instruments

Jefferson 7EJEFS1

At a river or reservoir gauge/6.5 mi away/443 ft/5 ft above here

temp, wind, gust, humidity, pressure

Rank77of 378

HartsvilleHVS

At an airfield/23.0 mi away/364 ft/74 ft below here

temp, wind, gust, visibility, precip, pressure

Rank5of 378

measured daily2 instruments

JeffersonJEFS2

At a cooperative observer's station/0.2 mi away/441 ft/3 ft above here

snowfall, snow depth, precip, high, low

Rank-

Jefferson 0.2 NNWSC-CF-12

In a volunteer observer's own ground/0.2 mi away/436 ft/2 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Hartsville, drawn

The nearest airport reporting now, 23.0 mi from Jefferson. From its report of Sep 27, 2026, 4:15 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 4,400 ft; visibility 10 mi or more.

Section of the sky over Hartsville, height above the station to scale: a few clouds cloud with its base at 4,400 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVSFIG. A THE SKY OVER HARTSVILLESECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETFEW 4,400 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEHartsville, the skySTATION REPORT · ASOS HVSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-09-27IDSR-HVS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

57.2 F with a dew point of 48.2 F, 72 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,100 ft up; the lowest cloud reported is at 4,400 ft.

Chart of the air at Hartsville: temperature 57.2 degrees Fahrenheit and dew point 48.2, 72 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,100 feet above the station, against the lowest cloud reported at 4,400 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HVSFIG. B THE AIR AT HARTSVILLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00040 F50 F60 F70 FSATURATES 2,100 FT ABOVE THE STATION, AT 46.2 FLOWEST CLOUD REPORTED, FEW 4,400 FTTEMPERATURE 57.2 FDEW POINT 48.2 FSPREAD 9.0 FRELATIVE HUMIDITY 72 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 POINTTITLEHartsville, the airSTATION REPORT · ASOS HVSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-09-27IDSR-HVS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Hartsville, 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 HVSFIG. C THE WIND AT HARTSVILLEPLAN, 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 FORCE73TITLEHartsville, the windSTATION REPORT · ASOS HVSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-09-27IDSR-HVS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

0in

Snow on the ground

Measured at Jefferson (JEFS2), 0.2 miles from here, read 26 Sep, 08:00. measured daily

Elsewhere in South Carolina

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

Near Jefferson

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