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Martinsburg, Indiana

Community in Washington County, Indiana

Air quality

The air at Martinsburg

Index 55, moderate, led by fine particles. Read at 5 AM from its reporting area, Louisville (KY), 26 miles off.

55Moderate
  • Fine particles (PM2.5)55Moderate17.8 mi
  • Ozone38Good26 ppb17.8 mi
  • Coarse particles (PM10)31Good17.8 mi
  • Nitrogen dioxide29Good31.1 ppb23.8 mi
  • Sulfur dioxide0Good0.9 ppb17.8 mi
  • Carbon monoxide-0.3 ppm23.8 mi

The days ahead

Good each day through Today, led by fine particles. Yesterday measured 60, moderate.

Smoke, the next 45 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at Martinsburg

None in the last 24 hours; 0.27 in over the last 3 days, to Fri 5 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.27in

Visibility

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

Visibility stays 6 miles or more through Sun 2 AM, lowest 6 miles Fri 8 AM.

FriSat

On the radar over Martinsburg, IndianaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest Martinsburg, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.1 miles away.

measured now4 instruments

CorydonIN040

Beside a road/15.0 mi away/679 ft/133 ft below here

temp, pavement temp, wind, visibility, precip

Rank731of 1,111

JeffersonJVY

At an airfield/16.4 mi away/468 ft/344 ft below here

temp, wind, gust, visibility, precip, pressure

Rank894of 1,111

measured daily2 instruments

CorydonCOYI3

At a cooperative observer's station/16.2 mi away/587 ft/225 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Jefferson, drawn

The nearest airport reporting now, 16.4 mi from Martinsburg, Indiana. From its report of Oct 16, 2026, 5:55 AM local time: 3 of its 6 sheets.

The sky

Broken at 5,500 ft, overcast at 7,500 ft; the ceiling is 5,500 ft; visibility 10 mi or more.

Section of the sky over Jefferson, height above the station to scale: broken cloud with its base at 5,500 feet, overcast cloud with its base at 7,500 feet, the ceiling at 5,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JVYFIG. A THE SKY OVER JEFFERSONSECTION, 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 STATION02,5005,0007,50010,00012,500ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FTOVC 7,500 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 5,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 5,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEJefferson, the skySTATION REPORT · ASOS JVYTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-JVY-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018, FB-SKY-013, FB-SKY-014

The air

71.6 F with a dew point of 66.2 F, 83 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,300 ft up; the lowest cloud reported is at 5,500 ft.

Chart of the air at Jefferson: temperature 71.6 degrees Fahrenheit and dew point 66.2, 83 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,300 feet above the station, against the lowest cloud reported at 5,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JVYFIG. B THE AIR AT JEFFERSONTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00050 F60 F70 F80 FSATURATES 1,300 FT ABOVE THE STATION, AT 64.9 FLOWEST CLOUD REPORTED, BKN 5,500 FTTEMPERATURE 71.6 FDEW POINT 66.2 FSPREAD 5.4 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 POINTTITLEJefferson, the airSTATION REPORT · ASOS JVYTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-JVY-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the southwest (220 degrees) at 8 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Jefferson, north up: blowing from 220 degrees, the southwest, at 8 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 3, gentle breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT JVYFIG. C THE WIND AT JEFFERSONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 220°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 8 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEJefferson, the windSTATION REPORT · ASOS JVYTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-JVY-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Indiana

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

Near Martinsburg

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

Near Martinsburg

River and lake gauges