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.

Partly Cloudy

88°F

31°C

Humidity 45%
Wind Speed Vrbl 7 mph
Barometer 30.22 in (1022.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 9 Sep 2:53 pm EDT
Extended Forecast for

4 Miles ESE Karns TN

  • This Afternoon

    This Afternoon: Sunny and hot, with a high near 91. Heat index values as high as 95. Southwest wind around 5 mph.

    High: 91 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 68. Calm wind becoming south around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 92. Heat index values as high as 96. Southwest wind 5 to 10 mph.

    High: 92 °F

    Hot

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: A 40 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 Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Northeast wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 90 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely then
    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Slight Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 91. Heat index values as high as 95. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 68. Calm wind becoming south around 5 mph.
Thursday
Sunny and hot, with a high near 92. Heat index values as high as 96. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm.
Friday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming southwest around 5 mph.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Northeast wind around 5 mph becoming calm. Chance of precipitation is 40%.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 69.
Monday
Sunny and hot, with a high near 92.
Monday Night
Mostly clear, with a low around 70.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Karns TN
 35.94°N 84.05°W (Elev. 974 ft)
Last Update:
2:26 pm EDT Sep 9, 2026
Forecast Valid:
3pm EDT Sep 9, 2026-6pm EDT Sep 15, 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