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Alcoa, Tennessee

City in Blount County, Tennessee

Air quality

The air at Alcoa

Index 34, good, led by ozone. Read at 1 AM from its reporting area, Great Smoky Mtns. Natl. Park - TN (TN), 11 miles off.

34Good
  • Fine particles (PM2.5)-13.4 mi
  • Ozone34Good37 ppb11 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles.

Smoke, the next 43 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 22 or under.

FriSat

Precipitation

What has fallen at Alcoa

None in the last 3 days, to Fri 1 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 Alcoa, the next 43 hours

Visibility stays 10 miles or more through Sat 8 PM.

FriSat

On the radar over Alcoa, TennesseeReflectivityStorm topsRain rateRain, last 24 hoursForecast temperatureForecast rain totalEvery picture

What is measuring near here

The 5 instruments nearest Alcoa, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 1.6 miles away.

measured now3 instruments

measured daily2 instruments

Alcoa 1.5 SETN-BT-23

In a volunteer observer's own ground/1.6 mi away/851 ft/16 ft below here

precip, snowfall, snow depth

Rank-

KnoxvilleKNXT1

At a cooperative observer's station/6.3 mi away/817 ft/50 ft below here

snowfall, snow depth, precip, high, low

Rank-

Station report

The weather at Knoxville Municipal, drawn

The nearest airport reporting now, 1.7 mi from Alcoa, Tennessee. From its report of Oct 16, 2026, 1:53 AM local time: 3 of its 6 sheets.

The sky

A few clouds at 4,700 ft; visibility 10 mi or more.

Section of the sky over Knoxville Municipal, height above the station to scale: a few clouds cloud with its base at 4,700 feet, and visibility of 10 mi or more.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TYSFIG. A THE SKY OVER KNOXVILLE MUNICIPALSECTION, 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 STATION01,0002,0003,0004,0005,0006,0007,0008,000ETAGESLOWMIDDLETHE STATIONTHE CEILOMETER READS TO 12,000 FT, ABOVE THIS SHEETFEW 4,700 FTA FEW CLOUDS, 1 TO 2 EIGHTHS OF THE SKYVISIBILITY, MILES: 10 MI OR MORE0510TITLEKnoxville Municipal, the skySTATION REPORT · ASOS TYSTYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-TYS-1DRAWN AS linework on paperSOURCES FB-SKY-001, FB-SKY-017, FB-SKY-016, FB-SKY-018

The air

72.0 F with a dew point of 67.0 F, 84 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 1,200 ft up; the lowest cloud reported is at 4,700 ft.

Chart of the air at Knoxville Municipal: temperature 72.0 degrees Fahrenheit and dew point 67.0, 84 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 1,200 feet above the station, against the lowest cloud reported at 4,700 feet; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT TYSFIG. B THE AIR AT KNOXVILLE MUNICIPALTHE REPORTED TEMPERATURE AND DEW POINT, AND AIR LIFTED FROM THE STATION WITHOUT MIXING UNTIL IT SATURATES; HEIGHT ABOVE THE STATION TO SCALEFT ABOVE THE STATION01,0002,0003,0004,0005,0006,00050 F60 F70 F80 FSATURATES 1,200 FT ABOVE THE STATION, AT 65.8 FLOWEST CLOUD REPORTED, FEW 4,700 FTTEMPERATURE 72.0 FDEW POINT 67.0 FSPREAD 5.0 FRELATIVE HUMIDITY 84 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 POINTTITLEKnoxville Municipal, the airSTATION REPORT · ASOS TYSTYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-TYS-2DRAWN AS linework on paperSOURCES FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

From the south southwest (210 degrees) at 9 mph: force 3, a gentle breeze on the Beaufort scale.

Plan of the wind at Knoxville Municipal, north up: blowing from 210 degrees, the south southwest, at 9 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 TYSFIG. C THE WIND AT KNOXVILLE MUNICIPALPLAN, NORTH UP: THE WIND AS REPORTED, AND WHERE IT SITS ON THE BEAUFORT SCALENESWTHE STATIONFROM 210°BEAUFORT FORCELEAST WIND, MPH0CALM01LIGHT AIR12LIGHT BREEZE43GENTLE BREEZE8NOW, 9 MPH4MODERATE BREEZE135FRESH BREEZE196STRONG BREEZE257NEAR GALE328GALE399STRONG GALE4710STORM5511VIOLENT STORM6412HURRICANE FORCE73TITLEKnoxville Municipal, the windSTATION REPORT · ASOS TYSTYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-TYS-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

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

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Snow on the ground

Elsewhere in Tennessee

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

Near Alcoa

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

Near Alcoa

River and lake gauges