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.

Overcast

66°F

19°C

Humidity 84%
Wind Speed SE 5 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 11 Mar 1:53 am EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 64. Southwest wind around 10 mph.

    Low: 64 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 81. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 81 °F

    Chance
    Showers then
    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 46. Southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 46 °F

    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind around 15 mph, with gusts as high as 20 mph.

    High: 54 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: Clear, with a low around 34. Northeast wind around 5 mph becoming southeast after midnight.

    Low: 34 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 66 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Southwest wind 5 to 10 mph becoming light after midnight.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 64. Southwest wind around 10 mph.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Partly sunny, with a high near 81. Breezy, with a southwest wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Showers and possibly a thunderstorm. Low around 46. Southwest wind around 15 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday
A 20 percent chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind around 15 mph, with gusts as high as 20 mph.
Thursday Night
Clear, with a low around 34. Northeast wind around 5 mph becoming southeast after midnight.
Friday
Sunny, with a high near 66. Breezy, with a southwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph.
Friday Night
Mostly clear, with a low around 42. Southwest wind 5 to 10 mph becoming light after midnight.
Saturday
Sunny, with a high near 72.
Saturday Night
Mostly clear, with a low around 50.
Sunday
A 30 percent chance of showers after 2pm. Partly sunny, with a high near 76. Breezy.
Sunday Night
Showers and thunderstorms. Low around 42. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 49. Chance of precipitation is 80%.
Monday Night
A slight chance of rain and snow showers. Partly cloudy, with a low around 26. Chance of precipitation is 10%.
Tuesday
Partly sunny, with a high near 47.
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Forecast Area
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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:
1:06 am EDT Mar 11, 2026
Forecast Valid:
2am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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