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

81°F

27°C

Humidity 69%
Wind Speed W 8 mph
Barometer 30.02 in (1015.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 21 Sep 10:53 am EDT
Extended Forecast for

4 Miles SE Knoxville TN

  • Today

    Today: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Calm wind.

    High: 92 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Increasing clouds, with a low around 69. Calm wind. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 88. Calm wind.

    High: 88 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Low around 66. North wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 80. Calm wind. Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 63. North wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 63 °F

    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 10%.

    Low: 59 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Calm wind.
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Increasing clouds, with a low around 69. Calm wind. Chance of precipitation is 40%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 88. Calm wind.
Tuesday Night
Showers and thunderstorms before 2am, then showers likely between 2am and 5am, then showers likely and possibly a thunderstorm after 5am. Low around 66. North wind around 5 mph becoming calm. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 80. Calm wind. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 63. North wind around 5 mph becoming calm. Chance of precipitation is 80%.
Thursday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. Calm wind becoming north around 5 mph. Chance of precipitation is 50%.
Thursday Night
A slight chance of thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 10%.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Knoxville TN
 35.93°N 83.89°W (Elev. 1001 ft)
Last Update:
6:56 am EDT Sep 21, 2026
Forecast Valid:
11am EDT Sep 21, 2026-6pm EDT Sep 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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