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.

Thunderstorm Light Rain

88°F

31°C

Humidity 48%
Wind Speed N 14 G 20 mph
Barometer 29.92 in (1011.8 mb)
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Heat Index90°F (32°C)
Last update 20 Sep 6:53 pm EDT
Extended Forecast for

3 Miles SE Knoxville TN

  • Tonight

    Tonight: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.

    High: 92 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 88. Calm wind. Chance of precipitation is 90%.

    High: 88 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. 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 81. Calm wind. Chance of precipitation is 80%.

    High: 81 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 80%.

    Low: 64 °F

    Showers

  • Thursday

    Thursday: A 50 percent chance of showers. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 70. Calm wind.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 92. Heat index values as high as 98. Calm wind becoming southwest around 5 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm. Chance of precipitation is 40%.
Tuesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 88. Calm wind. Chance of precipitation is 90%.
Tuesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 66. North wind around 5 mph becoming calm. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm. High near 81. Calm wind. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 64. North wind around 5 mph becoming calm. Chance of precipitation is 80%.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 60.
Friday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 56.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
Partly cloudy, with a low around 55.
Sunday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Knoxville TN
 35.94°N 83.92°W (Elev. 899 ft)
Last Update:
2:26 pm EDT Sep 20, 2026
Forecast Valid:
7pm EDT Sep 20, 2026-6pm EDT Sep 27, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation