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Casselberry, Florida

City in Seminole County, Florida

Air quality

The air at Casselberry

Index 18, good, led by fine particles. Read at 6 AM from its reporting area, Seminole County (FL), 6 miles off.

18Good
  • Fine particles (PM2.5)18Good-
  • Ozone10Good-
  • Coarse particles (PM10)9Good-

The days ahead

Good each day through Tue Oct 20, led by ozone. Yesterday measured 33, good.

Smoke, the next 45 hours

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

FriSat

Precipitation

What has fallen at Casselberry

None in the last 3 days, to Fri 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 Casselberry, the next 45 hours

Visibility stays 6 miles or more through Sun 2 AM, lowest 6 miles Fri 7 PM.

FriSat

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

What is measuring near here

The 7 instruments nearest Casselberry, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.0 miles away.

measured now5 instruments

measured daily2 instruments

Casselberry 1.4 SSEFL-SM-33

In a volunteer observer's own ground/1.0 mi away/71 ft/15 ft above here

precip, snowfall, snow depth

Rank-

SanfordSFNF1

At a cooperative observer's station/10.5 mi away/59 ft/3 ft above here

snowfall, snow depth, precip, high, low

Rank2,071of 2,338

Station report

The weather at Orlando/Herndon, drawn

The nearest airport reporting now, 7.8 mi from Casselberry, Florida. From its report of Oct 16, 2026, 5:53 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 Orlando/Herndon, 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 ORLFIG. A THE SKY OVER ORLANDO/HERNDONSECTION, 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 MORE0510TITLEOrlando/Herndon, the skySTATION REPORT · ASOS ORLTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-ORL-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

74.0 F with a dew point of 72.0 F, 93 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 500 ft up.

Chart of the air at Orlando/Herndon: temperature 74.0 degrees Fahrenheit and dew point 72.0, 93 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 500 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ORLFIG. B THE AIR AT ORLANDO/HERNDONTHE 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 FSATURATES 500 FT ABOVE THE STATION, AT 71.5 FTEMPERATURE AND DEW POINT 74.0 F, 72.0 FRELATIVE HUMIDITY 93 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 POINTTITLEOrlando/Herndon, the airSTATION REPORT · ASOS ORLTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-ORL-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the northeast (40 degrees) at 3 mph: force 1, a light air on the Beaufort scale.

Plan of the wind at Orlando/Herndon, north up: blowing from 40 degrees, the northeast, at 3 miles an hour; beside it the Beaufort scale from calm to hurricane force, force 1, light air, marked.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT ORLFIG. C THE WIND AT ORLANDO/HERNDONPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 40°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR1NOW, 3 MPH2LIGHT BREEZE43GENTLE BREEZE84MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEOrlando/Herndon, the windSTATION REPORT · ASOS ORLTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-ORL-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Orlando/Herndon, 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 Casselberry

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

Near Casselberry

River and lake gauges