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.

A Few Clouds

63°F

17°C

Humidity 41%
Wind Speed Calm
Barometer 30.10 in (1018.9 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 16 Feb 5:53 pm EST
Extended Forecast for

Alcoa TN

  • Tonight

    Tonight: Increasing clouds, with a low around 39. Calm wind.

    Low: 39 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 67. Light south wind becoming southwest 5 to 10 mph in the afternoon.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 66. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 66 °F

    Cloudy and
    Breezy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers after 1am. Cloudy, with a low around 58. Southwest wind 5 to 10 mph.

    Low: 58 °F

    Cloudy then
    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 72. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 72 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 58 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday

    Friday: A 40 percent chance of showers. Mostly sunny, with a high near 70. Breezy.

    High: 70 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 46.

    Low: 46 °F

    Chance
    Showers

Detailed Forecast

Tonight
Increasing clouds, with a low around 39. Calm wind.
Tuesday
Partly sunny, with a high near 67. Light south wind becoming southwest 5 to 10 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 52. South wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday
Cloudy, with a high near 66. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
A 50 percent chance of showers after 1am. Cloudy, with a low around 58. Southwest wind 5 to 10 mph.
Thursday
A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 72. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
A chance of showers, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 58. South wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Friday
A 40 percent chance of showers. Mostly sunny, with a high near 70. Breezy.
Friday Night
A 40 percent chance of showers, mainly after 1am. Partly cloudy, with a low around 46.
Saturday
A 40 percent chance of showers. Mostly sunny, with a high near 59.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 38.
Sunday
A 30 percent chance of showers. Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 28.
Monday
Mostly sunny, with a high near 45.
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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:
6:06 pm EST Feb 16, 2026
Forecast Valid:
6pm EST Feb 16, 2026-6pm EST Feb 23, 2026
 
Forecast Discussion
 
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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