National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Partly Cloudy

32°C

90°F

Humidity 71%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 26°C (79°F)
Visibility 16 km
Heat Index42°C (107°F)
Last update 24 Jun 7:15 pm EDT
Extended Forecast for

Knoxville TN

Heat Advisory until June 25, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until June 25, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • Tonight

    Low: 23 °C

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny and hot, with a high near 36. Heat index values as high as 41. Calm wind.

    High: 36 °C

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 23. Calm wind.

    Low: 23 °C

    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Heat index values as high as 38. Calm wind.

    High: 34 °C

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 30%.

    Low: 22 °C

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny and hot, with a high near 33. Calm wind. Chance of precipitation is 60%.

    High: 33 °C

    Chance
    Showers then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 60%.

    Low: 22 °C

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 33. Chance of precipitation is 60%.

    High: 33 °C

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 8pm and 10pm. Partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 20%.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny and hot, with a high near 36. Heat index values as high as 41. Calm wind.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 23. Calm wind.
Thursday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Heat index values as high as 38. Calm wind.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 30%.
Friday
A chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny and hot, with a high near 33. Calm wind. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 22. Calm wind. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 33. Chance of precipitation is 60%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 33. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Monday
Showers and thunderstorms likely. Partly sunny and hot, with a high near 33. Chance of precipitation is 70%.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms. High near 32. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Knoxville TN
 35.98°N 83.94°W (Elev. 942 m)
Last Update:
7:16 pm EDT Jun 24, 2025
Forecast Valid:
7pm EDT Jun 24, 2025-6pm EDT Jul 1, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation