Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

77°F

25°C

Humidity 88%
Wind Speed Calm
Barometer 30.06 in (1016.6 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 3 Sep 1:53 am EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

Heat Advisory September 3, 01:00pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • Overnight

    Overnight: Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 103. Calm wind.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73. South wind around 5 mph becoming calm  in the evening.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind becoming southwest around 5 mph.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 74 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.

    High: 94 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before 8pm.  Partly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm.

    Low: 71 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 93.

    High: 93 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a low around 73. Calm wind.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 103. Calm wind.
Thursday Night
Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Friday
Sunny and hot, with a high near 97. Heat index values as high as 101. Calm wind becoming southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 74. Northeast wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Northeast wind around 5 mph becoming calm.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93.
Sunday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70.
Labor Day
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 91.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
Mostly sunny and hot, with a high near 90.
Tuesday Night
Partly cloudy, with a low around 70.
Wednesday
Mostly sunny and hot, with a high near 92.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 ft)
1:06 am EDT Sep 3, 2026
2am EDT Sep 3, 2026-6pm EDT Sep 9, 2026
 
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Additional Resources

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