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Collegedale, Tennessee

City in Hamilton County, Tennessee

Air quality

The air at Collegedale

Index 68, moderate, led by fine particles. Read at 12 AM from its reporting area, Chattanooga (TN), 17 miles off.

68Moderate
  • Fine particles (PM2.5)68Moderate13.2 mi
  • Ozone25Good22 ppb6.8 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 80, moderate.

Smoke, the next 44 hours

Little smoke near the ground through Sat 8 PM: the index from smoke stays at 50 or under.

FriSat

Precipitation

What has fallen at Collegedale

None in the last 3 days, to Fri 12 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 Collegedale, the next 44 hours

Visibility stays 9 miles or more through Sat 8 PM, lowest 9 miles Fri 5 AM.

FriSat

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

What is measuring near here

The 5 instruments nearest Collegedale, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.2 miles away.

measured now3 instruments

Hm:O-019350750085045802

At a river or reservoir gauge/5.8 mi away/698 ft/273 ft below here

temp, wind, gust, humidity, pressure

Rank480of 1,019

measured daily2 instruments

Ooltewah 3.0 SWTN-HL-23

In a volunteer observer's own ground/2.2 mi away/932 ft/39 ft below here

precip, snowfall, snow depth

Rank-

Station report

The weather at Chattanooga/Lovell, drawn

The nearest airport reporting now, 8.5 mi from Collegedale, Tennessee. From its report of Oct 16, 2026, 12:53 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 Chattanooga/Lovell, 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 CHAFIG. A THE SKY OVER CHATTANOOGA/LOVELLSECTION, 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 MORE0510TITLEChattanooga/Lovell, the skySTATION REPORT · ASOS CHATYPESECTIONSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 1 of 6DATE2026-10-16IDSR-CHA-1DRAWN AS linework on paperSOURCES FB-SKY-001

The air

70.0 F with a dew point of 67.0 F, 90 per cent relative humidity. Air lifted from the station would cool to its dew point, where cloud forms, about 700 ft up.

Chart of the air at Chattanooga/Lovell: temperature 70.0 degrees Fahrenheit and dew point 67.0, 90 per cent relative humidity; air lifted from the station cools along the dry rate and meets its dew point about 700 feet above the station; height to scale.1122334455667788AABBCCDDEE© 2026 STORM STATION 247THE FIELD BOOKSTATION REPORT CHAFIG. B THE AIR AT CHATTANOOGA/LOVELLTHE 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 700 FT ABOVE THE STATION, AT 66.2 FTEMPERATURE 70.0 FDEW POINT 67.0 FSPREAD 3.0 FRELATIVE HUMIDITY 90 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 POINTTITLEChattanooga/Lovell, the airSTATION REPORT · ASOS CHATYPECHARTSCALEHEIGHT TO SCALEREVAS REPORTED SHEET 2 of 6DATE2026-10-16IDSR-CHA-2DRAWN AS linework on paperSOURCES FB-WAT-020, FB-WAT-002, FB-ENG-011, FB-ENG-005

The wind

Calm.

Plan of the wind at Chattanooga/Lovell, 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 CHAFIG. C THE WIND AT CHATTANOOGA/LOVELLPLAN, 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 FORCE73TITLEChattanooga/Lovell, the windSTATION REPORT · ASOS CHATYPEPLAN north upSCALENOT TO SCALEREVAS REPORTED SHEET 3 of 6DATE2026-10-16IDSR-CHA-3DRAWN AS linework on paperSOURCES FB-EVT-150, FB-ENG-008, FB-INS-002

The full report of Chattanooga/Lovell, in 6 sheets, each beside the Field Book plates that explain it

0in

Snow on the ground

Measured at Within City Limits (LKMT1), 16.6 miles from here, read 15 Oct, 08:00. measured daily

Elsewhere in Tennessee

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

Near Collegedale

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

Near Collegedale

River and lake gauges