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

Hazardous Weather Conditions

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Mostly Cloudy

24°F

-4°C

Humidity 65%
Wind Speed E 3 mph
Barometer 30.39 in (1030.0 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 21 Jan 8:53 am EST
Extended Forecast for

Alcoa TN

  • Today

    Today: A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 54. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 54 °F

    Sunny then
    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 3am, then a slight chance of showers after 4am. Cloudy, with a low around 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 53. Calm wind.

    High: 53 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 34. Calm wind becoming northeast around 5 mph.

    Low: 34 °F

    Chance
    Showers

  • Friday

    Friday: A chance of rain and snow showers before 4pm, then a chance of snow showers. Cloudy, with a high near 42. North wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 42 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 22. North wind around 10 mph.

    Low: 22 °F

    Chance Snow
    Showers

  • Saturday

    Saturday: Snow showers. The snow could be heavy at times. High near 31. Northeast wind around 10 mph. Chance of precipitation is 90%.

    High: 31 °F

    Snow Showers
    Likely then
    Heavy Snow

  • Saturday Night

    Saturday Night: Snow showers and freezing rain, becoming all snow after midnight. The snow could be heavy at times. Low around 25. Chance of precipitation is 100%.

    Low: 25 °F

    Wintry Mix
    then Heavy
    Snow

  • Sunday

    Sunday: Snow showers likely before 1pm, then a chance of rain and snow showers between 1pm and 4pm, then a chance of snow showers after 4pm. The snow could be heavy at times. Cloudy, with a high near 35. Chance of precipitation is 70%.

    High: 35 °F

    Heavy Snow
    then
    Rain/Snow
    Likely

Detailed Forecast

Today
A 20 percent chance of showers after 4pm. Increasing clouds, with a high near 54. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tonight
A chance of showers before 3am, then a slight chance of showers after 4am. Cloudy, with a low around 38. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Thursday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 53. Calm wind.
Thursday Night
A 30 percent chance of showers, mainly after 1am. Mostly cloudy, with a low around 34. Calm wind becoming northeast around 5 mph.
Friday
A chance of rain and snow showers before 4pm, then a chance of snow showers. Cloudy, with a high near 42. North wind 5 to 10 mph. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 22. North wind around 10 mph.
Saturday
Snow showers. The snow could be heavy at times. High near 31. Northeast wind around 10 mph. Chance of precipitation is 90%.
Saturday Night
Snow showers and freezing rain, becoming all snow after midnight. The snow could be heavy at times. Low around 25. Chance of precipitation is 100%.
Sunday
Snow showers likely before 1pm, then a chance of rain and snow showers between 1pm and 4pm, then a chance of snow showers after 4pm. The snow could be heavy at times. Cloudy, with a high near 35. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of snow showers before 1am. Mostly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 5.
Tuesday
Mostly sunny, with a high near 33.
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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 am EST Jan 21, 2026
Forecast Valid:
9am EST Jan 21, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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