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.

Fair

75°F

24°C

Humidity 66%
Wind Speed Calm
Barometer 30.15 in (1019.5 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 May 12:53 am EDT
Extended Forecast for

5 Miles S Karns TN

  • Overnight

    Overnight: Partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Increasing clouds, with a low around 65. West wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 84. Calm wind. Chance of precipitation is 90%.

    High: 84 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 11am. High near 83. Light south wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 83 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 67. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers after 2am. Increasing clouds, with a low around 65. West wind around 5 mph becoming calm. Chance of precipitation is 30%.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 84. Calm wind. Chance of precipitation is 90%.
Thursday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 65. East wind around 5 mph becoming calm. Chance of precipitation is 80%.
Friday
Showers likely, then showers and possibly a thunderstorm after 11am. High near 83. Light south wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Saturday Night
A chance of showers and thunderstorms, then showers likely after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Memorial Day
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Tuesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Karns TN
 35.9°N 84.11°W (Elev. 938 ft)
Last Update:
1:06 am EDT May 20, 2026
Forecast Valid:
1am EDT May 20, 2026-6pm EDT May 26, 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