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St. Francisville, Louisiana

Town in West Feliciana Parish, Louisiana

Air quality

The air at St. Francisville

Index 33, good, led by fine particles. Read at 2 AM from its reporting area, Baton Rouge Area (LA), 27 miles off.

33Good
  • Fine particles (PM2.5)33Good-
  • Ozone21Good4 ppb20 mi
  • Coarse particles (PM10)14Good-
  • Nitrogen dioxide1Good1.5 ppb20 mi

The days ahead

Highest 53, moderate, today, led by fine particles. Yesterday measured 64, moderate.

Smoke, the next 41 hours

Little smoke near the ground through Sat 7 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at St. Francisville

None in the last 3 days, to Fri 2 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.00in

Visibility

How far you can see at St. Francisville, the next 41 hours

Visibility stays 9 miles or more through Sat 7 PM, lowest 10 miles Fri 8 AM.

FriSat

On the radar over St. Francisville, LouisianaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest St. Francisville, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.3 miles away.

measured now3 instruments

New RoadsHZR

At an airfield/7.6 mi away/36 ft/83 ft below here

temp, wind, gust, visibility, precip, pressure

Rank771of 933

measured daily2 instruments

Saint FrancisvilleSFVL1

At a cooperative observer's station/0.3 mi away/117 ft/2 ft below here

snowfall, snow depth, precip, high, low

Rank-

ST. Francisville 5.7 ESELA-WF-3

In a volunteer observer's own ground/6.8 mi away/259 ft/140 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at New Roads, drawn

The nearest airport reporting now, 7.6 mi from St. Francisville, Louisiana. From its report of Oct 16, 2026, 3:15 AM local time: 3 of its 5 sheets.

The sky

No cloud below 12,000 ft; visibility 9 mi.

Section of the sky over New Roads, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 9 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HZRFIG. A THE SKY OVER NEW ROADSSECTION, 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 STATION05001,0001,5002,0002,5003,000ETAGESLOWTHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETNO CLOUD DETECTED BELOW 12,000 FTVISIBILITY, MILES: 9 MI0510TITLENew Roads, the skySTATION REPORT · ASOS HZRTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-HZR-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

65.0 F with a dew point of 65.0 F, 100 per cent relative humidity. The air is saturated at the ground.

Chart of the air at New Roads: temperature 65.0 degrees Fahrenheit and dew point 65.0, 100 per cent relative humidity; the air saturated at the ground; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HZRFIG. B THE AIR AT NEW ROADSTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00050 F60 F70 F80 FSATURATED AT THE GROUNDTEMPERATURE AND DEW POINT 65.0 F, 65.0 FRELATIVE HUMIDITY 100 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 POINTTITLENew Roads, the airSTATION REPORT · ASOS HZRTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-HZR-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The column

At 36 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.88 inHg and the temperature at 58.9 F; the station's altimeter setting of 30.07 inHg means its barometer reads 30.03 inHg; it reports 65.0 F, 6.1 F warmer than standard.

Section from sea level of where New Roads stands in the atmosphere, height to scale: the station 36 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.88 inches of mercury, and temperature, 58.9 degrees Fahrenheit; the altimeter setting of 30.07 and the station pressure it means, 30.03.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HZRFIG. D WHERE NEW ROADS 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 ATMOSPHERENEW ROADS0 PER CENT OF THE AIR BELOW IT36 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 HERE29.88 inHgSTANDARD TEMPERATURE HERE58.9 FALTIMETER SETTING, REPORTED30.07 inHgITS BAROMETER READS30.03 inHgTEMPERATURE, REPORTED65.0 FTITLENew Roads, the columnSTATION REPORT · ASOS HZRTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-HZR-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

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

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Snow on the ground

Elsewhere in Louisiana

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

Near St. Francisville

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

Near St. Francisville

River and lake gauges