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.

Overcast

74°F

23°C

Humidity 74%
Wind Speed NE 3 mph
Barometer 30.03 in (1016.0 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 20 May 7:53 pm EDT
Extended Forecast for

2 Miles NW Knoxville, McGhee Tyson Airport TN

  • Tonight

    Tonight: Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 11am. High near 81. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after 11am. High near 82. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.

    High: 82 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph. Chance of precipitation is 100%.

    Low: 65 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 11am. High near 81. Light southwest wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 100%.

    High: 81 °F

    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 64 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Southwest wind around 5 mph becoming calm. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers, with thunderstorms also possible after 11am. High near 81. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Northeast wind around 5 mph becoming calm. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers, with thunderstorms also possible after 11am. High near 82. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 90%.
Friday Night
Showers and possibly a thunderstorm. Low around 65. South wind around 5 mph. Chance of precipitation is 100%.
Saturday
Showers, with thunderstorms also possible after 11am. High near 81. Light southwest wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 100%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 65. Chance of precipitation is 80%.
Memorial Day
A chance of showers, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 80%.
Monday Night
Showers and thunderstorms. Low around 65. Chance of precipitation is 80%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
Showers and thunderstorms likely. Partly sunny, with a high near 83. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NW Knoxville, McGhee Tyson Airport TN
 35.83°N 84.01°W (Elev. 988 ft)
Last Update:
7:06 pm EDT May 20, 2026
Forecast Valid:
8pm EDT May 20, 2026-6pm EDT May 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation