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Keystone, West Virginia

City in McDowell County, West Virginia

Air quality

The air at Keystone

Index 36, good, led by ozone. Read at 7 PM from its reporting area, Wythe Co. (VA), 38 miles off.

36Good
  • Ozone36Good-

The days ahead

Yesterday measured 34, good.

Smoke, the next 43 hours

No smoke near the ground through Sun 2 PM.

FriSatSun

Precipitation

What has fallen at Keystone

0.12 in in the last 24 hours, 0.97 in over the last 3 days, to Fri 7 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.12in
Last 3 days
0.97in

Visibility

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

Visibility stays 4 miles or more through Sun 2 PM, lowest 4 miles Sat 5 AM.

FriSatSun

On the radar over Keystone, West VirginiaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Keystone, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.7 miles away.

measured now3 instruments

PinevilleI16

At an airfield/14.3 mi away/1,785 ft/144 ft below here

temp, wind, gust, visibility, precip, pressure

Rank2of 711

measured daily2 instruments

Eckman 1.1 NWWV-MD-5

In a volunteer observer's own ground/1.7 mi away/1,562 ft/367 ft below here

precip, snowfall, snow depth

Rank-

BluefieldBLFW2

At a cooperative observer's station/16.4 mi away/2,516 ft/587 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Pineville, drawn

The nearest airport reporting now, 14.3 mi from Keystone, West Virginia. From its report of Oct 16, 2026, 7:55 PM local time: 3 of its 5 sheets.

The sky

Broken at 1,500 ft, broken at 2,200 ft, overcast at 5,000 ft; the ceiling is 1,500 ft; visibility 10 mi or more.

Section of the sky over Pineville, height above the station to scale: broken cloud with its base at 1,500 feet, broken cloud with its base at 2,200 feet, overcast cloud with its base at 5,000 feet, the ceiling at 1,500 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT I16FIG. A THE SKY OVER PINEVILLESECTION, 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 SHEETOVC 5,000 FTOVERCAST, 8 EIGHTHS OF THE SKYBKN 2,200 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYBKN 1,500 FTBROKEN, 5 TO 7 EIGHTHS OF THE SKYCEILING 1,500 FTVISIBILITY, MILES: 10 MI OR MORE0510TITLEPineville, the skySTATION REPORT · ASOS I16TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-I16-1DRAWN 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 53.0 F, 86 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,000 ft up; the lowest cloud reported is at 1,500 ft.

Chart of the air at Pineville: temperature 57.2 degrees Fahrenheit and dew point 53.0, 86 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,000 feet above the station, against the lowest cloud reported at 1,500 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT I16FIG. B THE AIR AT PINEVILLETHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00040 F50 F60 F70 FSATURATES 1,000 FT ABOVE THE STATION, AT 52.0 FLOWEST CLOUD REPORTED, BKN 1,500 FTTEMPERATURE 57.2 FDEW POINT 53.0 FSPREAD 4.2 FRELATIVE HUMIDITY 86 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 POINTTITLEPineville, the airSTATION REPORT · ASOS I16TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-I16-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 1,785 ft above sea level, 6 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 28.04 inHg and the temperature at 52.6 F; the station's altimeter setting of 30.09 inHg means its barometer reads 28.20 inHg; it reports 57.2 F, 4.6 F warmer than standard.

Section from sea level of where Pineville stands in the atmosphere, height to scale: the station 1,785 feet above sea level with 6 per cent of the air below it; the standard atmosphere's pressure there, 28.04 inches of mercury, and temperature, 52.6 degrees Fahrenheit; the altimeter setting of 30.09 and the station pressure it means, 28.20.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT I16FIG. D WHERE PINEVILLE STANDS IN THE ATMOSPHERESECTION FROM SEA LEVEL, HEIGHT TO SCALE, THE STATION IN THE STANDARD ATMOSPHEREFT ABOVE SEA LEVEL05,00010,00015,000SEA LEVEL, 29.92 inHg IN THE STANDARD ATMOSPHEREPINEVILLE6 PER CENT OF THE AIR BELOW IT1,785 FT10 PER CENT OF THE AIR BELOW, 2,890 FT20 PER CENT OF THE AIR BELOW, 6,050 FT30 PER CENT OF THE AIR BELOW, 9,540 FT40 PER CENT OF THE AIR BELOW, 13,470 FTSTANDARD PRESSURE HERE28.04 inHgSTANDARD TEMPERATURE HERE52.6 FALTIMETER SETTING, REPORTED30.09 inHgITS BAROMETER READS28.20 inHgTEMPERATURE, REPORTED57.2 FTITLEPineville, the columnSTATION REPORT · ASOS I16TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-I16-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The full report of Pineville, in 5 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in West Virginia

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

Near Keystone

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

Near Keystone

River and lake gauges