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St. Marks, Florida

City in Wakulla County, Florida

Air quality

The air at St. Marks

Index 54, moderate, led by fine particles. Read at 11 PM from its reporting area, Tallahassee (FL), 14 miles off.

54Moderate
  • Fine particles (PM2.5)54Moderate-
  • Ozone31Good-

The days ahead

Highest moderate, today, led by fine particles. Yesterday measured 60, moderate.

Smoke, the next 45 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 11 or under.

FriSat

Precipitation

What has fallen at St. Marks

None in the last 3 days, to Thu 11 PM. 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. Marks, the next 45 hours

Visibility stays 8 miles or more through Sat 8 PM, lowest 8 miles Fri 4 AM.

FriSat

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

What is measuring near here

The 6 instruments nearest St. Marks, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 4.0 miles away.

measured now4 instruments

Wakulla #1S2009

At a soil climate station/15.7 mi away/150 ft/141 ft above here

temp, humidity, soil temp, soil moisture

Rank1,651of 2,338

measured daily2 instruments

St. Marks 3.9 NNWFL-WK-16

In a volunteer observer's own ground/4.0 mi away/16 ft/7 ft above here

precip, snowfall, snow depth

Rank-

Station report

The weather at Tallahassee Rgnl, drawn

The nearest airport reporting now, 18.2 mi from St. Marks, Florida. From its report of Oct 15, 2026, 11:53 PM 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 Tallahassee Rgnl, 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 TLHFIG. A THE SKY OVER TALLAHASSEE RGNLSECTION, 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 MORE0510TITLETallahassee Rgnl, the skySTATION REPORT · ASOS TLHTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-TLH-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

67.0 F with a dew point of 64.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up.

Chart of the air at Tallahassee Rgnl: temperature 67.0 degrees Fahrenheit and dew point 64.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TLHFIG. B THE AIR AT TALLAHASSEE RGNLTHE 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 FSATURATES 700 FT ABOVE THE STATION, AT 63.3 FTEMPERATURE 67.0 FDEW POINT 64.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLETallahassee Rgnl, the airSTATION REPORT · ASOS TLHTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-TLH-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Tallahassee Rgnl, north up: calm; beside it the Beaufort scale from calm to hurricane force, force 0, calm, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TLHFIG. C THE WIND AT TALLAHASSEE RGNLPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONCALMBEAUFORT FORCELEAST WIND, MPH0CALM0NOW, 0 MPH1LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLETallahassee Rgnl, the windSTATION REPORT · ASOS TLHTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-TLH-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Florida

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

Near St. Marks

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

Near St. Marks

River and lake gauges