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

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

70°F

21°C

Humidity 53%
Wind Speed Calm
Barometer 30.13 in (1019.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 5 Mar 7:53 pm EST
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Tonight

    Tonight: Partly cloudy, with a low around 57. South wind 5 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly sunny, with a high near 80. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 80 °F

    Partly Sunny
    then Showers
    Likely and
    Breezy

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 61. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 72. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 72 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.

    Low: 56 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. South wind 5 to 10 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. South wind 5 to 10 mph. Chance of precipitation is 20%.
Saturday
Showers likely and possibly a thunderstorm, mainly after 4pm. Mostly sunny, with a high near 80. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Saturday Night
Showers and possibly a thunderstorm. Low around 61. Southwest wind 5 to 10 mph. Chance of precipitation is 80%.
Sunday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 72. Southwest wind 5 to 10 mph. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62.
Wednesday
Showers likely. Mostly cloudy, with a high near 79. Breezy. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Thursday
A 40 percent chance of showers. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 ft)
Last Update:
6:06 pm EST Mar 5, 2026
Forecast Valid:
8pm EST Mar 5, 2026-6pm EDT Mar 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation