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South Salem, Ohio

Village in Ross County, Ohio

Air quality

The air at South Salem

Index 18, good, led by ozone. Read at 8 AM from its reporting area, Columbus (OH), 48 miles off.

18Good
  • Fine particles (PM2.5)14Good-
  • Ozone18Good-
  • Coarse particles (PM10)4Good-

The days ahead

Highest 53, moderate, Sun Oct 18, led by fine particles. Yesterday measured 29, good.

Smoke, the next 43 hours

No smoke near the ground through Mon 2 AM.

SatSun

Precipitation

What has fallen at South Salem

0.07 in in the last 24 hours, 0.20 in over the last 3 days, to Sat 7 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.07in
Last 3 days
0.20in

Visibility

How far you can see at South Salem, the next 43 hours

Visibility stays 9 miles or more through Mon 2 AM, lowest 9 miles Sun 5 AM.

SatSun

On the radar over South Salem, OhioReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 6 instruments nearest South Salem, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 3.6 miles away.

measured now4 instruments

measured daily2 instruments

South Salem 3.6 SSEOH-RS-9

In a volunteer observer's own ground/3.6 mi away/902 ft/16 ft below here

precip, snowfall, snow depth

Rank-

Greenfield 1 WNWGRFO1

At a cooperative observer's station/5.5 mi away/968 ft/50 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Chillicothe, drawn

The nearest airport reporting now, 16.8 mi from South Salem, Ohio. From its report of Oct 17, 2026, 8:35 AM local time: 3 of its 6 sheets.

The sky

Overcast at 3,200 ft; the ceiling is 3,200 ft; visibility 10 mi or more.

Section of the sky over Chillicothe, height above the station to scale: overcast cloud with its base at 3,200 feet, the ceiling at 3,200 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RZTFIG. A THE SKY OVER CHILLICOTHESECTION, 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 STATION01,0002,0003,0004,0005,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETOVC 3,200 FTOVERCAST, 8 EIGHTHS OF THE SKYCEILING 3,200 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEChillicothe, the skySTATION REPORT · ASOS RZTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-RZT-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

41.0 F with a dew point of 37.4 F, 87 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 800 ft up; the lowest cloud reported is at 3,200 ft.

Chart of the air at Chillicothe: temperature 41.0 degrees Fahrenheit and dew point 37.4, 87 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 800 feet above the station, against the lowest cloud reported at 3,200 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT RZTFIG. B THE AIR AT CHILLICOTHETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,00030 F40 F50 FSATURATES 800 FT ABOVE THE STATION, AT 36.6 FLOWEST CLOUD REPORTED, OVC 3,200 FTTEMPERATURE 41.0 FDEW POINT 37.4 FSPREAD 3.6 FRELATIVE HUMIDITY 87 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 POINTTITLEChillicothe, the airSTATION REPORT · ASOS RZTTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-RZT-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north (350 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 24 mph.

Plan of the wind at Chillicothe, north up: blowing from 350 degrees, the north, at 9 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 RZTFIG. C THE WIND AT CHILLICOTHEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 350°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEChillicothe, the windSTATION REPORT · ASOS RZTTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-RZT-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Ohio

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

Near South Salem

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

Near South Salem

River and lake gauges