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.

Partly Cloudy

24°C

75°F

Humidity 90%
Wind Speed NW 6 km/h
Barometer 1017.8 mb (30.10 in)
Dewpoint 22°C (72°F)
Visibility 16 km
Last update 12 Jul 10:53 pm EDT
Extended Forecast for

Alcoa TN

  • Tonight

    Tonight: Mostly clear, with a low around 22. Calm wind.

    Low: 22 °C

    Mostly Clear

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 33. Heat index values as high as 38. West wind 5 to 10 km/h. Chance of precipitation is 30%.

    High: 33 °C

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22. West wind 5 to 10 km/h becoming calm in the evening.

    Low: 22 °C

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Heat index values as high as 38. Calm wind.

    High: 34 °C

    Mostly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22. Calm wind.

    Low: 22 °C

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 35. Calm wind.

    High: 35 °C

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 23. South wind 5 to 10 km/h.

    Low: 23 °C

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 34. Chance of precipitation is 60%.

    High: 34 °C

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Low: 23 °C

    T-storms
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 22. Calm wind.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 33. Heat index values as high as 38. West wind 5 to 10 km/h. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22. West wind 5 to 10 km/h becoming calm in the evening.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Heat index values as high as 38. Calm wind.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 22. Calm wind.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 35. Calm wind.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 23. South wind 5 to 10 km/h.
Wednesday
Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 34. Chance of precipitation is 60%.
Wednesday Night
Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Thursday
A slight chance of showers, then showers and thunderstorms likely after 8am. Partly sunny and hot, with a high near 33. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Friday
Showers and thunderstorms likely. Partly sunny and hot, with a high near 33. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely. Partly sunny and hot, with a high near 33. Chance of precipitation is 60%.
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 83.98°W (Elev. 955 m)
Last Update:
7:26 pm EDT Jul 12, 2025
Forecast Valid:
11pm EDT Jul 12, 2025-6pm EDT Jul 19, 2025
 
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