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.

Fair

70°F

21°C

Humidity 90%
Wind Speed NE 3 mph
Barometer 30.25 in (1023.1 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 9 Sep 3:53 am EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Today

    Today: Sunny and hot, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 90 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 67. Southwest wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 91. Southwest wind 5 to 10 mph.

    High: 91 °F

    Hot

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 69. West wind around 5 mph.

    Low: 69 °F

    Increasing
    Clouds

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Northeast wind around 5 mph becoming southeast in the evening.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 89 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 90. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 67. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 91. Southwest wind 5 to 10 mph.
Thursday Night
Increasing clouds, with a low around 69. West wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Northeast wind around 5 mph becoming southeast in the evening.
Saturday
A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.
Monday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 90.
Monday Night
A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 69.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 91.
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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:
2:26 am EDT Sep 9, 2026
Forecast Valid:
4am EDT Sep 9, 2026-6pm EDT Sep 15, 2026
 
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Additional Resources

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Chance of Precipitation