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North Key Largo, Florida

Community in Monroe County, Florida

Air quality

The air at North Key Largo

Index 19, good, led by ozone. Read at 5 AM from its reporting area, Miami (FL), 35 miles off.

19Good
  • Ozone19Good-

The days ahead

Good each day through Sun Oct 18, led by ozone. Yesterday measured 29, good.

Smoke, the next 46 hours

No smoke near the ground through Sun 2 AM.

FriSat

Precipitation

What has fallen at North Key Largo

None in the last 3 days, to Fri 4 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 North Key Largo, the next 46 hours

Mist or haze: visibility falls to 2 miles Sat 8 PM.

FriSat

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

What is measuring near here

The 6 instruments nearest North Key Largo, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.4 miles away.

measured now4 instruments

measured daily2 instruments

Key Largo 17.9 NEFL-MN-37

In a volunteer observer's own ground/0.4 mi away/12 ft/8 ft above here

precip, snowfall, snow depth

Rank-

Key LargoKLPF1

At a cooperative observer's station/15.3 mi away/49 ft/45 ft above here

snowfall, snow depth, precip, high, low

Rank1,315of 2,338

Station report

The weather at Key Largo - Ocean Reef, drawn

The nearest airport reporting now, 0.8 mi from North Key Largo, Florida. From its report of Oct 16, 2026, 5:35 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 Key Largo - Ocean Reef, 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 K70FIG. A THE SKY OVER KEY LARGO - OCEAN REEFSECTION, 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 MORE0510TITLEKey Largo - Ocean Reef, the skySTATION REPORT · ASOS K70TYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-K70-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

82.4 F with a dew point of 78.8 F, 89 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 900 ft up.

Chart of the air at Key Largo - Ocean Reef: temperature 82.4 degrees Fahrenheit and dew point 78.8, 89 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 900 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT K70FIG. B THE AIR AT KEY LARGO - OCEAN REEFTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,00070 F80 F90 FSATURATES 900 FT ABOVE THE STATION, AT 77.9 FTEMPERATURE 82.4 FDEW POINT 78.8 FSPREAD 3.6 FRELATIVE HUMIDITY 89 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 POINTTITLEKey Largo - Ocean Reef, the airSTATION REPORT · ASOS K70TYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-K70-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the east (80 degrees) at 10 mph: force 3, a gentle breeze on the Beaufort scale. The strongest gust today was 16 mph.

Plan of the wind at Key Largo - Ocean Reef, north up: blowing from 80 degrees, the east, at 10 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 K70FIG. C THE WIND AT KEY LARGO - OCEAN REEFPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 80°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 10 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEKey Largo - Ocean Reef, the windSTATION REPORT · ASOS K70TYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-K70-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Key Largo - Ocean Reef, 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 North Key Largo

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

Near North Key Largo

River and lake gauges