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

79°F

26°C

Humidity 62%
Wind Speed SW 8 mph
Barometer 30.04 in (1016.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 23 May 5:53 pm EDT
Extended Forecast for

4 Miles NNE Louisville TN

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Southwest wind around 5 mph.

    High: 79 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then a chance of showers between 2am and 5am. Mostly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Memorial Day

    Memorial Day: Showers, with thunderstorms also possible after 11am. High near 81. Calm wind. Chance of precipitation is 90%.

    High: 81 °F

    Showers

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 64. Calm wind. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%.

    High: 82 °F

    Showers
    Likely then
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    T-storms then
    Showers

  • Wednesday

    Wednesday: A chance of showers, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79. Southwest wind around 5 mph.
Tonight
Showers and thunderstorms likely before 2am, then a chance of showers between 2am and 5am. Mostly cloudy, with a low around 63. Southwest wind around 5 mph becoming calm. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Mostly cloudy, with a low around 63. Calm wind. Chance of precipitation is 60%.
Memorial Day
Showers, with thunderstorms also possible after 11am. High near 81. Calm wind. Chance of precipitation is 90%.
Monday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 64. Calm wind. Chance of precipitation is 80%.
Tuesday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 82. Calm wind becoming southwest around 5 mph. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 65. Chance of precipitation is 80%.
Wednesday
A chance of showers, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 65. Chance of precipitation is 80%.
Thursday
Showers and thunderstorms. High near 82. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm. Low around 64. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 80. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78.
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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:
2:25 pm EDT May 23, 2026
Forecast Valid:
5pm EDT May 23, 2026-6pm EDT May 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