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.

Partly Cloudy

76°F

24°C

Humidity 39%
Wind Speed Vrbl 3 mph
Barometer 29.94 in (1012.9 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 17 Apr 8:53 pm EDT
Extended Forecast for

Louisville TN

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 85. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 46. West wind around 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers

  • Sunday

    Sunday: A 20 percent chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 65. North wind around 10 mph, with gusts as high as 20 mph.

    High: 65 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Clear, with a low around 42. North wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 70. Light and variable wind becoming west 5 to 10 mph in the morning.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. North wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 59. Calm wind.
Saturday
Mostly sunny, with a high near 85. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 25 mph.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 46. West wind around 10 mph becoming north after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 20 percent chance of showers before 2pm. Cloudy through mid morning, then gradual clearing, with a high near 65. North wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 42. North wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 70. Light and variable wind becoming west 5 to 10 mph in the morning.
Monday Night
Mostly clear, with a low around 44. North wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 52.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville TN
 35.81°N 84.04°W (Elev. 850 ft)
Last Update:
7:06 pm EDT Apr 17, 2026
Forecast Valid:
9pm EDT Apr 17, 2026-6pm EDT Apr 24, 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