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

75°F

24°C

Humidity 88%
Wind Speed Vrbl 3 mph
Barometer 30.09 in (1017.5 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 15 Jul 5:53 am EDT
Extended Forecast for

4 Miles ESE Karns TN

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny and hot, with a high near 94. Heat index values as high as 100. Calm wind.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny and hot, with a high near 92. Southwest wind around 5 mph. Chance of precipitation is 60%.

    High: 92 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 74 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 91. Southwest wind around 5 mph. Chance of precipitation is 70%.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny and hot, with a high near 94. Heat index values as high as 100. Calm wind.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 73. Calm wind.
Wednesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 40%.
Thursday
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny and hot, with a high near 92. Southwest wind around 5 mph. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 74. Southwest wind around 5 mph. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 91. Southwest wind around 5 mph. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 60%.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92.
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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:
2:05 am EDT Jul 15, 2025
Forecast Valid:
5am EDT Jul 15, 2025-6pm EDT Jul 21, 2025
 
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