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.

Mostly Cloudy

67°F

19°C

Humidity 79%
Wind Speed NE 5 mph
Barometer 30.20 in (1021.9 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 24 Sep 10:53 am EDT
Extended Forecast for

Louisville TN

  • Today

    Today: A chance of showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 74. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 58. Northeast wind around 5 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 75. Northeast wind around 5 mph.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. Northeast wind around 5 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Northeast wind around 5 mph becoming calm.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54. Calm wind becoming northeast around 5 mph.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 74. Northeast wind around 5 mph becoming calm.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 52 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of showers before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers after 5pm. Partly sunny, with a high near 74. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Mostly clear, with a low around 58. Northeast wind around 5 mph.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 75. Northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 52. Northeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 75. Northeast wind around 5 mph becoming calm.
Saturday Night
Mostly cloudy, with a low around 54. Calm wind becoming northeast around 5 mph.
Sunday
Mostly sunny, with a high near 74. Northeast wind around 5 mph becoming calm.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 77.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 61.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville TN
 35.83°N 84.07°W (Elev. 814 ft)
Last Update:
7:06 am EDT Sep 24, 2026
Forecast Valid:
11am EDT Sep 24, 2026-6pm EDT Sep 30, 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