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

Tracking Storm System Across the Central U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Fair

50°F

10°C

Humidity 94%
Wind Speed Calm
Barometer 30.10 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 17 Oct 7:55 am EDT
Extended Forecast for

Watts Bar Dam TN

  • Today

    Today: Increasing clouds, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 79 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely after 2am. Increasing clouds, with a low around 61. South wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 61 °F

    Mostly Cloudy
    then Showers
    Likely

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 2pm, then a slight chance of showers. Partly sunny, with a high near 69. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.

    High: 69 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A 10 percent chance of showers before 8pm. Mostly clear, with a low around 41. West wind around 5 mph becoming calm in the evening.

    Low: 41 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70. Calm wind.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers before 2pm. Sunny, with a high near 72.

    High: 72 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 55. Calm wind.
Saturday
Sunny, with a high near 82. South wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Showers likely after 2am. Increasing clouds, with a low around 61. South wind around 10 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Sunday
Showers likely and possibly a thunderstorm before 2pm, then a slight chance of showers. Partly sunny, with a high near 69. South wind 10 to 15 mph becoming west in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Sunday Night
A 10 percent chance of showers before 8pm. Mostly clear, with a low around 41. West wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 70. Calm wind.
Monday Night
Mostly clear, with a low around 47.
Tuesday
A 20 percent chance of showers before 2pm. Sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 41.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Mostly sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Watts Bar Dam TN
 35.61°N 84.81°W (Elev. 794 ft)
Last Update:
7:06 am EDT Oct 17, 2025
Forecast Valid:
8am EDT Oct 17, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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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