Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Thunderstorm Light Rain

70°F

21°C

Humidity 97%
Wind Speed S 9 mph
Barometer 30.10 in (1018.5 mb)
Dewpoint 69°F (21°C)
Visibility 7.00 mi
Last update 23 Sep 6:53 pm EDT
Extended Forecast for

Louisville TN

Flood Advisory until September 23, 09:00pm
Click here for hazard details and duration
...
  •  
    Flood Advisory until September 23, 09:00pm

    NOW until 9:00pm Wed

    Flood Advisory

  • Tonight

    Low: 63 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm.  Cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming northeast around 5 mph.  Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Northeast wind around 5 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 75. Northeast wind around 5 mph.

    High: 75 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 51. Northeast wind around 5 mph.

    Low: 51 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. Northeast wind around 5 mph becoming calm.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. Calm wind becoming northeast around 5 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then a chance of showers after 2am. Low around 63. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Cloudy through mid morning, then gradual clearing, with a high near 76. Calm wind becoming northeast around 5 mph. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 57. Northeast wind around 5 mph.
Friday
Sunny, with a high near 75. Northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 51. Northeast wind around 5 mph.
Saturday
Sunny, with a high near 76. Northeast wind around 5 mph becoming calm.
Saturday Night
Partly cloudy, with a low around 52. Calm wind becoming northeast around 5 mph.
Sunday
Partly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville TN
 35.83°N 84.04°W (Elev. 863 ft)
7:06 pm EDT Sep 23, 2026
7pm EDT Sep 23, 2026-6pm EDT Sep 30, 2026
 
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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