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.

Light Rain

70°F

21°C

Humidity 97%
Wind Speed E 5 mph
Barometer 30.14 in (1019.7 mb)
Dewpoint 69°F (21°C)
Visibility 8.00 mi
Last update 3 Oct 10:53 am EDT
Extended Forecast for

Alcoa TN

  • Today

    Today: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Calm wind becoming north around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of thunderstorms before 2am, then a chance of showers and thunderstorms, mainly after 4am. Cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 78. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 78 °F

    Showers

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Cloudy, with a low around 62. Calm wind becoming north around 5 mph after midnight.

    Low: 62 °F

    Chance
    T-storms then
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. Northeast wind 10 to 15 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 52. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 52 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79. North wind 5 to 10 mph.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Calm wind becoming north around 5 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of thunderstorms before 2am, then a chance of showers and thunderstorms, mainly after 4am. Cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Sunday
Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 78. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Cloudy, with a low around 62. Calm wind becoming north around 5 mph after midnight.
Monday
Mostly sunny, with a high near 79. Northeast wind 10 to 15 mph.
Monday Night
Mostly clear, with a low around 52. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Sunny, with a high near 79. North wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 50.
Friday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Alcoa TN
 35.78°N 83.99°W (Elev. 869 ft)
Last Update:
7:07 am EDT Oct 3, 2026
Forecast Valid:
10am EDT Oct 3, 2026-6pm EDT Oct 9, 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