Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

A Few Clouds

72°F

22°C

Humidity 84%
Wind Speed Calm
Barometer 30.24 in (1022.7 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 22 Jun 7:53 am EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • Today

    Today: Sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind.

    High: 92 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 94. Heat index values as high as 101. Calm wind.

    High: 94 °F

    Hot

  • Monday Night

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

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Hot

  • Tuesday Night

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

    Low: 73 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97. Calm wind.

    High: 97 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm.  Sunny and hot, with a high near 95.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 92. Heat index values as high as 97. Calm wind.
Tonight
Mostly clear, with a low around 71. Calm wind.
Monday
Sunny and hot, with a high near 94. Heat index values as high as 101. Calm wind.
Monday Night
Mostly clear, with a low around 73. Calm wind.
Tuesday
Sunny and hot, with a high near 95. Calm wind.
Tuesday Night
Mostly clear, with a low around 73. Calm wind.
Wednesday
Sunny and hot, with a high near 97. Calm wind.
Wednesday Night
Partly cloudy, with a low around 72.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 95.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.8°N 83.98°W (Elev. 955 ft)
7:16 am EDT Jun 22, 2025
8am EDT Jun 22, 2025-6pm EDT Jun 28, 2025
 
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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