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

25°C

77°F

Humidity 82%
Wind Speed Calm
Barometer 1017.0 mb (30.07 in)
Dewpoint 22°C (71°F)
Visibility 16 km
Heat Index26°C (79°F)
Last update 12 Jul 8:53 pm EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Tonight

    Tonight: Mostly clear, with a low around 22. Southwest wind around 10 km/h.

    Low: 22 °C

    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 33. Southwest wind 5 to 15 km/h.

    High: 33 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22. West wind 5 to 10 km/h becoming calm in the evening.

    Low: 22 °C

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Calm wind becoming northwest 5 to 10 km/h in the afternoon.

    High: 34 °C

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 23. North wind 5 to 10 km/h becoming east after midnight.

    Low: 23 °C

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. East wind 5 to 10 km/h becoming west in the afternoon.

    High: 34 °C

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 23. South wind 5 to 10 km/h.

    Low: 23 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 34. Chance of precipitation is 60%.

    High: 34 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Low: 23 °C

    T-storms
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 22. Southwest wind around 10 km/h.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 33. Southwest wind 5 to 15 km/h.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22. West wind 5 to 10 km/h becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Calm wind becoming northwest 5 to 10 km/h in the afternoon.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 23. North wind 5 to 10 km/h becoming east after midnight.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. East wind 5 to 10 km/h becoming west in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 23. South wind 5 to 10 km/h.
Wednesday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 34. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Thursday
A slight chance of showers, then showers and thunderstorms likely after 8am. Partly sunny and hot, with a high near 33. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Partly sunny and hot, with a high near 33. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny and hot, with a high near 33. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 m)
Last Update:
7:26 pm EDT Jul 12, 2025
Forecast Valid:
9pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
Forecast Discussion
 
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Additional Resources

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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