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Smithfield, Kentucky

City in Henry County, Kentucky

Air quality

The air at Smithfield

Index 22, good, led by ozone. Read at 10 AM from its reporting area, Louisville (KY), 26 miles off.

22Good
  • Fine particles (PM2.5)7Good22.7 mi
  • Ozone22Good20 ppb10.5 mi
  • Coarse particles (PM10)4Good22.7 mi
  • Nitrogen dioxide3Good3.2 ppb24.6 mi
  • Sulfur dioxide0Good0.7 ppb24.6 mi
  • Carbon monoxide-0.1 ppm24.6 mi

The days ahead

Highest moderate, Mon Oct 19, led by fine particles. Yesterday measured 31, good.

Smoke, the next 46 hours

No smoke near the ground through Mon 8 AM.

SatSunMon

Precipitation

What has fallen at Smithfield

0.06 in in the last 24 hours, 1.05 in over the last 3 days, to Sat 10 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.06in
Last 3 days
1.05in

Visibility

How far you can see at Smithfield, the next 46 hours

Visibility stays 10 miles or more through Mon 8 AM.

SatSunMon

On the radar over Smithfield, KentuckyReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 7 instruments nearest Smithfield, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.5 miles away.

measured now5 instruments

I-71 at mile 42.506_71_0043

Beside a road/17.8 mi away/-/- ft from here

temp, pavement temp, wind, visibility, precip

Rank-

measured daily2 instruments

New CastleNWCK2

At a cooperative observer's station/5.6 mi away/776 ft/127 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Capital City Airport/Frankfort, drawn

The nearest airport reporting now, 23.6 mi from Smithfield, Kentucky. From its report of Oct 17, 2026, 10:53 AM local time: 3 of its 3 sheets.

The column

At 778 ft above sea level, 3 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.09 inHg and the temperature at 56.2 F; the station's altimeter setting of 30.45 inHg means its barometer reads 29.60 inHg.

Section from sea level of where Capital City Airport/Frankfort stands in the atmosphere, height to scale: the station 778 feet above sea level with 3 per cent of the air below it; the standard atmosphere's pressure there, 29.09 inches of mercury, and temperature, 56.2 degrees Fahrenheit; the altimeter setting of 30.45 and the station pressure it means, 29.60.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FFTFIG. D WHERE CAPITAL CITY AIRPORT/FRANKFORT 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 ATMOSPHERECAPITAL CITY AIRPORT/FRANKFORT3 PER CENT OF THE AIR BELOW IT778 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 HERE29.09 inHgSTANDARD TEMPERATURE HERE56.2 FALTIMETER SETTING, REPORTED30.45 inHgITS BAROMETER READS29.60 inHgTITLECapital City Airport/Frankfort, the columnSTATION REPORT · ASOS FFTTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 3DATE2026-10-17IDSR-FFT-1DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

The sun

On Oct 17 the noon sun stands 42 degrees above the horizon at 38.18 N, and the day is 10 h 60 min long. Level ground there takes 67 per cent of the noon sunlight a surface facing the sun would.

Elevation of the noon sun at Capital City Airport/Frankfort, angles true: on Oct 17 it stands 42 degrees above the horizon, against 75 at the June solstice, 52 at the equinoxes and 28 at the December solstice; the day is 10 h 60 min long.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FFTFIG. E THE SUN AT CAPITAL CITY AIRPORT/FRANKFORTELEVATION LOOKING WEST, SOUTH TO THE LEFT: THE NOON SUN ON THE DAY OF THE REPORT, AND AT THE SOLSTICES AND EQUINOXES; ANGLES TRUETHE STATIONJUNE SOLSTICE 75°EQUINOXES 52°DECEMBER SOLSTICE 28°OCT 17, 42°SOUTHANGLES TRUE; THE RAYS ARE OF ONE LENGTH AND DRAW DIRECTION ONLYDAY LENGTH 10 H 60 MINLEVEL GROUND TAKES 67 PER CENT OF THE NOON SUN A FACING SURFACE WOULDLATITUDE 38.18 N; THE SUN'S DECLINATION -9.4°TITLECapital City Airport/Frankfort, the sunSTATION REPORT · ASOS FFTTYPEELEVATIONSCALEANGLES TRUEREVAS REPORTED SHEET 2 of 3DATE2026-10-17IDSR-FFT-2DRAWN AS linework on paperSOURCES FB-ENG-007

The instrument

An airport station, 778 ft above sea level. Its report of Oct 17, 2026, 10:53 AM local time is written on the sensors that made it.

Elevation of an airport station, Capital City Airport/Frankfort, each sensor drawn and labelled with what it read: barometers, in the shelter, altimeter 30.45 inhg.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT FFTFIG. F THE INSTRUMENTELEVATION OF AN AIRPORT STATION, EACH SENSOR WITH WHAT IT READ, OCT 17, 2026, 10:53 AM LOCAL TIMEBAROMETERS, IN THE SHELTERALTIMETER 30.45 inHgHEATED RAIN GAUGE-VISIBILITY SENSOR, 7 FT-BEAMCEILOMETER, LOOKING UP-TEMPERATURE IN ITS SHIELD, 5 FT-WIND, 33 FT-33 FT5 FTHEIGHTS TO SCALE; THE SPACING BETWEEN SENSORS IS NOTTITLECapital City Airport/Frankfort, the instrumentSTATION REPORT · ASOS FFTTYPEELEVATIONSCALEPARTLY TO SCALEREVAS REPORTED SHEET 3 of 3DATE2026-10-17IDSR-FFT-3DRAWN AS linework on paperSOURCES FB-INS-002, FB-INS-001, FB-INS-009

The full report of Capital City Airport/Frankfort, in 3 sheets, each beside the Field Book plates that explain it

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Snow on the ground

Elsewhere in Kentucky

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

Near Smithfield

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

Near Smithfield

River and lake gauges