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

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

31°F

-1°C

Humidity 49%
Wind Speed NW 9 mph
Barometer 30.13 in (1020.8 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 18 Jan 3:53 am EST
Extended Forecast for

Alcoa TN

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 36. Light and variable wind becoming west 5 to 10 mph in the afternoon.

    High: 36 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 24 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 38. West wind around 10 mph, with gusts as high as 20 mph.

    High: 38 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 13. West wind around 5 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 36. Calm wind becoming west around 5 mph.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. Calm wind.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48. South wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of rain showers after 1am, mixing with snow after 5am. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A 10 percent chance of snow showers before 7am. Mostly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Snow Showers
    then Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 36. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Tonight
Mostly clear, with a low around 24. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
M.L.King Day
Sunny, with a high near 38. West wind around 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 13. West wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 36. Calm wind becoming west around 5 mph.
Tuesday Night
Mostly clear, with a low around 19. Calm wind.
Wednesday
Mostly sunny, with a high near 48. South wind 5 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
A slight chance of rain showers after 1am, mixing with snow after 5am. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Thursday
A 10 percent chance of snow showers before 7am. Mostly sunny, with a high near 46.
Thursday Night
Mostly clear, with a low around 24.
Friday
Mostly sunny, with a high near 53.
Friday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 36.
Saturday
A 40 percent chance of showers. Mostly cloudy, with a high near 54.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alcoa TN
 35.8°N 83.96°W (Elev. 856 ft)
Last Update:
12:31 am EST Jan 18, 2026
Forecast Valid:
4am EST Jan 18, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation