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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.

Light Rain

75°F

24°C

Humidity 50%
Wind Speed SW 14 mph
Barometer 29.87 in (1010.5 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 13 May 5:53 pm EDT
Extended Forecast for

Knoxville, McGhee Tyson Airport TN

  • 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 40%.

    Low: 49 °F

    Chance
    Showers then
    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 71. North wind 5 to 10 mph.

    High: 71 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. North wind around 5 mph becoming calm 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.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 62. Southwest wind around 5 mph becoming calm in the evening.

    Low: 62 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

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 40%.
Thursday
Sunny, with a high near 71. North wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 45. North wind around 5 mph becoming calm 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.
Saturday
Mostly sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 62. Southwest wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 63.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 65.
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. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Knoxville, McGhee Tyson Airport TN
 35.8°N 83.98°W (Elev. 955 ft)
Last Update:
2:26 pm EDT May 13, 2026
Forecast Valid:
6pm EDT May 13, 2026-6pm EDT May 20, 2026
 
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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