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

Marginal Risks of Severe Storms on the Central Plains; Flash flooding on the Northern Plains; Frost & Freeze Warnings in portions of the West & Northeast

A storm system developing across the Plains may cause locally severe weather in western Kansas and southwestern Nebraska today, with isolated flash flooding possible in portions of eastern Montana and western North Dakota. Frost and Freeze Warnings are in effect for portions of the central Rockies and central Appalachians tonight into Friday morning. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Fair

70°F

21°C

Humidity 46%
Wind Speed NE 15 mph
Barometer 30.11 in (1018.7 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 16 Oct 11:53 am EDT
Extended Forecast for

Alcoa TN

  • This Afternoon

    This Afternoon: Sunny, with a high near 75. Northeast wind around 10 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. Northeast wind 5 to 10 mph.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 83. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    High: 73 °F

    Showers
    Likely and
    Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before 8pm. Mostly clear, with a low around 44.

    Low: 44 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 75. Northeast wind around 10 mph.
Tonight
Mostly clear, with a low around 49. Northeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 78. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 56. Calm wind.
Saturday
Sunny, with a high near 83. Southwest wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 64. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 73. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Sunday Night
A 30 percent chance of showers before 8pm. Mostly clear, with a low around 44.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 47.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 76.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 51.
Wednesday
A 10 percent chance of showers. Mostly sunny, with a high near 69.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Alcoa TN
 35.78°N 83.99°W (Elev. 869 ft)
Last Update:
8:21 am EDT Oct 16, 2025
Forecast Valid:
12pm EDT Oct 16, 2025-6pm EDT Oct 22, 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