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

80°F

27°C

Humidity 45%
Wind Speed W 14 G 21 mph
Barometer 30.25 in (1023.3 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 3 Apr 12:53 pm EDT
Extended Forecast for

Louisville TN

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 83. Southwest wind around 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Mostly Cloudy

  • Tonight

    Tonight: Partly cloudy, with a low around 61. South wind around 5 mph.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance Rain
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 55. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    Low: 55 °F

    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm. Partly sunny, with a high near 67. Northwest wind around 5 mph. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Northwest wind around 5 mph becoming calm in the evening.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.

    High: 65 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 83. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 61. South wind around 5 mph.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 82. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 55. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Sunday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 2pm. Partly sunny, with a high near 67. Northwest wind around 5 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 42. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 65. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 62.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Sunny, with a high near 70.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville TN
 35.83°N 84.04°W (Elev. 863 ft)
Last Update:
7:06 am EDT Apr 3, 2026
Forecast Valid:
1pm EDT Apr 3, 2026-6pm EDT Apr 9, 2026
 
Forecast Discussion
 
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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