National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

92°F

33°C

Humidity 46%
Wind Speed Vrbl 3 mph
Barometer 30.20 in (1021.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 17 Sep 4:53 pm EDT
Extended Forecast for

4 Miles NNE Louisville TN

  • Tonight

    Tonight: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 95. Heat index values as high as 100. Calm wind.

    High: 95 °F

    Hot

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 9pm. Increasing clouds, with a low around 71. Northeast wind around 5 mph becoming calm.

    Low: 71 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 93. Heat index values as high as 98. Calm wind.

    High: 93 °F

    Patchy Fog
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming southwest around 5 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69. Calm wind.

    Low: 69 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.

    High: 92 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 72. Calm wind.
Friday
Sunny and hot, with a high near 95. Heat index values as high as 100. Calm wind.
Friday Night
A 20 percent chance of showers and thunderstorms before 9pm. Increasing clouds, with a low around 71. Northeast wind around 5 mph becoming calm.
Saturday
A 30 percent chance of showers and thunderstorms after 2pm. Patchy fog before 9am. Otherwise, mostly sunny and hot, with a high near 93. Heat index values as high as 98. Calm wind.
Saturday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 30%.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming southwest around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 69. Calm wind.
Monday
A slight chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 68.
Tuesday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Tuesday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 67. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Louisville TN
 35.88°N 84.03°W (Elev. 840 ft)
Last Update:
2:26 pm EDT Sep 17, 2026
Forecast Valid:
5pm EDT Sep 17, 2026-6pm EDT Sep 24, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation