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

74°F

23°C

Humidity 79%
Wind Speed NW 3 mph
Barometer 30.09 in (1017.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 4 Oct 3:53 pm EDT
Extended Forecast for

Alcoa TN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Cloudy, with a high near 79. Calm wind.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Patchy fog between 10pm and 1am. Otherwise, cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight.

    Low: 60 °F

    Slight Chance
    T-storms and
    Patchy Fog
    then Patchy
    Fog

  • Monday

    Monday: Mostly cloudy, then gradually becoming sunny, with a high near 80. Northeast wind 10 to 15 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. Northeast wind around 10 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 81. Northeast wind around 5 mph becoming calm in the morning.

    High: 81 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. Calm wind.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. Calm wind becoming west around 5 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Cloudy, with a high near 79. Calm wind.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Patchy fog between 10pm and 1am. Otherwise, cloudy, with a low around 60. Calm wind becoming north around 5 mph after midnight.
Monday
Mostly cloudy, then gradually becoming sunny, with a high near 80. Northeast wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 53. Northeast wind around 10 mph.
Tuesday
Sunny, with a high near 81. Northeast wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 53. Calm wind.
Wednesday
Sunny, with a high near 83. Calm wind becoming west around 5 mph.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 54.
Friday
Mostly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 55.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alcoa TN
 35.78°N 83.96°W (Elev. 899 ft)
Last Update:
2:26 pm EDT Oct 4, 2026
Forecast Valid:
3pm EDT Oct 4, 2026-6pm EDT Oct 10, 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