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.

Fair

28°F

-2°C

Humidity 41%
Wind Speed Calm
Barometer 30.44 in (1031.7 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 20 Jan 9:53 pm EST
Extended Forecast for

Alcoa TN

  • Tonight

    Tonight: Clear, with a low around 21. Calm wind.

    Low: 21 °F

    Clear

  • Wednesday

    Wednesday: A 10 percent chance of showers after 5pm. Sunny, with a high near 53. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 53 °F

    Sunny then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers, mainly after 7pm. Cloudy, with a low around 37. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers. Partly sunny, with a high near 52. Calm wind.

    High: 52 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 33. Calm wind becoming north around 5 mph.

    Low: 33 °F

    Chance
    Showers

  • Friday

    Friday: A chance of rain showers before 3pm, then a chance of snow showers. Mostly cloudy, with a high near 41. North wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 41 °F

    Chance
    Showers then
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Snow showers likely, mainly after 1am. Cloudy, with a low around 23. North wind around 10 mph. Chance of precipitation is 60%.

    Low: 23 °F

    Chance Snow
    Showers then
    Snow Showers
    Likely

  • Saturday

    Saturday: Snow showers. The snow could be heavy at times. High near 32. Chance of precipitation is 90%.

    High: 32 °F

    Heavy Snow

  • Saturday Night

    Saturday Night: Snow showers before 11pm, then snow showers, possibly mixed with freezing rain between 11pm and 2am, then snow showers after 2am. The snow could be heavy at times. Low around 24. Chance of precipitation is 90%.

    Low: 24 °F

    Wintry Mix

Detailed Forecast

Tonight
Clear, with a low around 21. Calm wind.
Wednesday
A 10 percent chance of showers after 5pm. Sunny, with a high near 53. Light and variable wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
A 50 percent chance of showers, mainly after 7pm. Cloudy, with a low around 37. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 20 percent chance of showers. Partly sunny, with a high near 52. Calm wind.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 33. Calm wind becoming north around 5 mph.
Friday
A chance of rain showers before 3pm, then a chance of snow showers. Mostly cloudy, with a high near 41. North wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
Snow showers likely, mainly after 1am. Cloudy, with a low around 23. North wind around 10 mph. Chance of precipitation is 60%.
Saturday
Snow showers. The snow could be heavy at times. High near 32. Chance of precipitation is 90%.
Saturday Night
Snow showers before 11pm, then snow showers, possibly mixed with freezing rain between 11pm and 2am, then snow showers after 2am. The snow could be heavy at times. Low around 24. Chance of precipitation is 90%.
Sunday
A chance of snow showers before 1pm, then a chance of rain and snow showers between 1pm and 3pm, then a chance of snow showers after 3pm. Cloudy, with a high near 32. Chance of precipitation is 50%.
Sunday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around 12.
Monday
Partly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 4.
Tuesday
Mostly sunny, with a high near 33.
Basemap Options
Click map to change the forecast location
Loading map...
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 Jan 20, 2026
Forecast Valid:
10pm EST Jan 20, 2026-6pm EST Jan 27, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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