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Port St. John, Florida

Community in Brevard County, Florida

Air quality

The air at Port St. John

Index 28, good, led by ozone. Read at 11 PM from its reporting area, Melbourne (FL), 14 miles off.

28Good
  • Fine particles (PM2.5)11Good-
  • Ozone28Good-
  • Coarse particles (PM10)6Good-

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 34, good.

Smoke, the next 46 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 6 or under.

FriSat

Precipitation

What has fallen at Port St. John

None in the last 3 days, to Thu 10 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 Port St. John, the next 46 hours

Mist or haze: visibility falls to 2 miles Fri 4 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest Port St. John, 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 now4 instruments

measured daily2 instruments

Cocoa 7.9 NNWFL-BV-66

In a volunteer observer's own ground/0.3 mi away/26 ft/level with here

precip, snowfall, snow depth

Rank-

TitusvilleTITF1

At a cooperative observer's station/10.8 mi away/49 ft/23 ft above here

snowfall, snow depth, precip, high, low

Rank124of 2,338

Station report

The weather at Titusville, drawn

The nearest airport reporting now, 2.7 mi from Port St. John, Florida. From its report of Oct 15, 2026, 8:47 PM local time: 3 of its 5 sheets.

The sky

Clear; visibility 7 mi.

Section of the sky over Titusville, height above the station to scale: a clear sky, and visibility of 7 mi.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TIXFIG. A THE SKY OVER TITUSVILLESECTION, 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 STATIONCLEARVISIBILITY, MILES: 7 MI0510TITLETitusville, the skySTATION REPORT · ASOS TIXTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-16IDSR-TIX-1DRAWN AS linework on paperSOURCES FB-SKY-001

The wind

From the east (90 degrees) at 7 mph: force 2, a light breeze on the Beaufort scale.

Plan of the wind at Titusville, north up: blowing from 90 degrees, the east, at 7 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 2, light breeze, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TIXFIG. C THE WIND AT TITUSVILLEPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 90°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE4NOW, 7 MPH3GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLETitusville, the windSTATION REPORT · ASOS TIXTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-16IDSR-TIX-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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 30.09 inHg means its barometer reads 30.05 inHg.

Section from sea level of where Titusville 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 30.09 and the station pressure it means, 30.05.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TIXFIG. D WHERE TITUSVILLE 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 ATMOSPHERETITUSVILLE0 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, REPORTED30.09 inHgITS BAROMETER READS30.05 inHgTITLETitusville, the columnSTATION REPORT · ASOS TIXTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-16IDSR-TIX-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

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

-

Snow on the ground

Elsewhere in Florida

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

Near Port St. John

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

Near Port St. John

River and lake gauges