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Folsom, Louisiana

Village in St. Tammany Parish, Louisiana

Air quality

The air at Folsom

Index 27, good, led by fine particles. Read at 6 AM from its reporting area, New Orleans (LA), 42 miles off.

27Good
  • Fine particles (PM2.5)27Good-
  • Ozone26Good21 ppb13.9 mi

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 45, good.

Smoke, the next 44 hours

No smoke near the ground through Mon 1 AM.

SatSun

Precipitation

What has fallen at Folsom

None in the last 3 days, to Sat 5 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 Folsom, the next 44 hours

Visibility stays 10 miles or more through Mon 1 AM.

SatSun

On the radar over Folsom, LouisianaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Folsom, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.8 miles away.

measured now3 instruments

measured daily2 instruments

Folsom 5.7 SSWLA-ST-4

In a volunteer observer's own ground/5.8 mi away/49 ft/109 ft below here

precip, snowfall, snow depth

Rank-

Covington 4NNWCOVL1

At a cooperative observer's station/8.0 mi away/46 ft/112 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Hammond Muni Airport, drawn

The nearest airport reporting now, 15.7 mi from Folsom, Louisiana. From its report of Oct 17, 2026, 6:15 AM local time: 3 of its 6 sheets.

The sky

No cloud below 12,000 ft; visibility 10 mi or more.

Section of the sky over Hammond Muni Airport, height above the station to scale: no cloud detected below 12,000 feet, the reach of its ceilometer, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HDCFIG. A THE SKY OVER HAMMOND MUNI AIRPORTSECTION, 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: 10 MI OR MORE0510TITLEHammond Muni Airport, the skySTATION REPORT · ASOS HDCTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-17IDSR-HDC-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

53.0 F with a dew point of 41.0 F, 64 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 2,700 ft up.

Chart of the air at Hammond Muni Airport: temperature 53.0 degrees Fahrenheit and dew point 41.0, 64 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 2,700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT HDCFIG. B THE AIR AT HAMMOND MUNI AIRPORTTHE 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 F60 FSATURATES 2,700 FT ABOVE THE STATION, AT 38.3 FTEMPERATURE 53.0 FDEW POINT 41.0 FSPREAD 12.0 FRELATIVE HUMIDITY 64 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 POINTTITLEHammond Muni Airport, the airSTATION REPORT · ASOS HDCTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-17IDSR-HDC-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the north northeast (20 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 30 mph.

Plan of the wind at Hammond Muni Airport, north up: blowing from 20 degrees, the north northeast, 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 HDCFIG. C THE WIND AT HAMMOND MUNI AIRPORTPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 20°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEHammond Muni Airport, the windSTATION REPORT · ASOS HDCTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-17IDSR-HDC-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Hammond Muni Airport, in 6 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 Folsom

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

Near Folsom

River and lake gauges