National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather Conditions and Severe Thunderstorms Today

Scattered severe thunderstorms are possible across portions of the northern High Plains this afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin today and the southern High Plains on Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Partly Cloudy

76°F

24°C

Humidity 45%
Wind Speed SW 17 G 25 mph
Barometer 29.90 in (1011.6 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 13 May 3:53 pm EDT
Extended Forecast for

2 Miles N Knoxville, McGhee Tyson Airport TN

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. West wind around 15 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly clear, with a low around 49. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 30%.

    Low: 49 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70. North wind 5 to 10 mph.

    High: 70 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. North wind 5 to 10 mph becoming light northeast in the evening.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm after midnight.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 78. West wind around 15 mph, with gusts as high as 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 9pm. Mostly clear, with a low around 49. West wind 5 to 10 mph becoming north after midnight. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 70. North wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 45. North wind 5 to 10 mph becoming light northeast in the evening.
Friday
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 86. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 62.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 64.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 65.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Knoxville, McGhee Tyson Airport TN
 35.83°N 83.98°W (Elev. 961 ft)
Last Update:
2:26 pm EDT May 13, 2026
Forecast Valid:
4pm EDT May 13, 2026-6pm EDT May 20, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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