Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

74°F

23°C

Humidity 82%
Wind Speed Calm
Barometer 30.07 in (1016.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Sep 1:53 am EDT
Extended Forecast for

Louisville TN

  • Overnight

    Overnight: Partly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 90 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 67. Northeast wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 93. Heat index values as high as 101. Calm wind becoming west around 5 mph.

    High: 93 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 92. Calm wind becoming north around 5 mph.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 93.

    High: 93 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 68. Calm wind.
Monday
Mostly sunny and hot, with a high near 90. Heat index values as high as 98. Calm wind becoming northeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 67. Northeast wind around 5 mph.
Tuesday
Sunny and hot, with a high near 93. Heat index values as high as 101. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 69. Calm wind.
Wednesday
Sunny and hot, with a high near 92. Calm wind becoming north around 5 mph.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
Sunny and hot, with a high near 93.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny and hot, with a high near 93.
Friday Night
Mostly clear, with a low around 68.
Saturday
Mostly sunny and hot, with a high near 92.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 68.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Louisville TN
 35.83°N 84.04°W (Elev. 863 ft)
1:06 am EDT Sep 14, 2026
2am EDT Sep 14, 2026-6pm EDT Sep 20, 2026
 
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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