Knoxville, TN Weather Forecast
Knox County, Tennessee
Seven-day outlook
56–91°F across the weekForecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
About the Knoxville forecast
Knoxville sits at 35.9707°N, 83.9493°W in Knox County, Tennessee. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Knox County
- Coordinates
- 35.9707°N, 83.9493°W
- Population
- 198,162 · 2023 estimate
- Land area
- 98.732 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Knoxville, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see Knoxville?
The nearest Doppler radar is KMRX (Knoxville, TN), 33 miles to the ENE. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches Knoxville its center is about 2,100 ft above ground. That is comfortably inside the useful range. The lowest scan passes low enough over Knoxville to show rotation in the part of a storm where tornadoes actually form. Knoxville is closer to its radar than 65% of US cities.
The closest instrument actually measuring the air is KDKX · Knoxville/Downtown Arpt on the ASOS/AWOS network, 4.4 miles away. Close enough that its readings are, for practical purposes, the conditions in town.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Tennessee observing network as of this build.
Forecasts near Knoxville
- Alcoa, TN11 mi
- Louisville, TN12 mi
- Clinton, TN13 mi
- Farragut, TN14 mi
- Maryville, TN15 mi
- Oak Ridge, TN19 mi
- Maynardville, TN21 mi
- Sevierville, TN21 mi
Elsewhere in Tennessee
Nashville-Davidson metropolitan government (balance)MemphisChattanoogaClarksvilleMurfreesboroFranklinAll Tennessee forecasts →