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Largo, Florida

City in Pinellas County, Florida

Air quality

The air at Largo

Index 26, good, led by fine particles. Read at 6 AM from its reporting area, St. Petersburg (FL), 3 miles off.

26Good
  • Fine particles (PM2.5)26Good-
  • Ozone17Good-
  • Coarse particles (PM10)8Good-

The days ahead

Highest moderate, today, led by fine particles. Yesterday measured 33, good.

Smoke, the next 44 hours

Little smoke near the ground through Mon 2 AM: the index from smoke stays at 6 or under.

SatSun

Precipitation

What has fallen at Largo

0.73 in in the last 24 hours, and none in the 2 days before, to Sat 6 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.73in
Last 3 days
0.73in

Visibility

How far you can see at Largo, the next 44 hours

Visibility stays 3 miles or more through Mon 2 AM, lowest 3 miles Sat 10 AM.

SatSun

On the radar over Largo, FloridaReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Largo, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.7 miles away.

measured now3 instruments

measured daily2 instruments

Largo 0.5 SEFL-PN-28

In a volunteer observer's own ground/0.7 mi away/9 ft/5 ft above here

precip, snowfall, snow depth

Rank-

St Petersburg 6WNWSZPF1

At a cooperative observer's station/8.0 mi away/23 ft/19 ft above here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Clearwater Air Park, drawn

The nearest airport reporting now, 4.4 mi from Largo, Florida. From its report of Oct 17, 2026, 7:15 AM local time: 3 of its 5 sheets.

The air

75.2 F with a dew point of 73.4 F, 94 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 400 ft up.

Chart of the air at Clearwater Air Park: temperature 75.2 degrees Fahrenheit and dew point 73.4, 94 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 400 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CLWFIG. B THE AIR AT CLEARWATER AIR PARKTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00060 F70 F80 F90 FSATURATES 400 FT ABOVE THE STATION, AT 72.9 FTEMPERATURE AND DEW POINT 75.2 F, 73.4 FRELATIVE HUMIDITY 94 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 POINTTITLEClearwater Air Park, the airSTATION REPORT · ASOS CLWTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 5DATE2026-10-17IDSR-CLW-1DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Clearwater Air Park, 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 CLWFIG. C THE WIND AT CLEARWATER AIR PARKPLAN, 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 FORCE73TITLEClearwater Air Park, the windSTATION REPORT · ASOS CLWTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 2 of 5DATE2026-10-17IDSR-CLW-2DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The column

At 76 ft above sea level, 0 per cent of the atmosphere's air lies below the station. The standard atmosphere puts the pressure there at 29.84 inHg and the temperature at 58.7 F; the station's altimeter setting of 29.98 inHg means its barometer reads 29.90 inHg; it reports 75.2 F, 16.5 F warmer than standard.

Section from sea level of where Clearwater Air Park stands in the atmosphere, height to scale: the station 76 feet above sea level with 0 per cent of the air below it; the standard atmosphere's pressure there, 29.84 inches of mercury, and temperature, 58.7 degrees Fahrenheit; the altimeter setting of 29.98 and the station pressure it means, 29.90.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CLWFIG. D WHERE CLEARWATER AIR PARK 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 ATMOSPHERECLEARWATER AIR PARK0 PER CENT OF THE AIR BELOW IT76 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 HERE29.84 inHgSTANDARD TEMPERATURE HERE58.7 FALTIMETER SETTING, REPORTED29.98 inHgITS BAROMETER READS29.90 inHgTEMPERATURE, REPORTED75.2 FTITLEClearwater Air Park, the columnSTATION REPORT · ASOS CLWTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 3 of 5DATE2026-10-17IDSR-CLW-3DRAWN AS linework on paperSOURCES FB-ENG-001, FB-ENG-003

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

0in

Snow on the ground

Measured at St Petersburg 6WNW (SZPF1), 8.0 miles from here, read 12 Oct, 23:59. measured daily

Elsewhere in Florida

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

Near Largo

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

Near Largo

River and lake gauges