Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Current conditions at

Athens McMinn County Airport (KMMI)

Lat: 35.4°NLon: 84.56°WElev: 874ft.

Overcast

70°F

21°C

Humidity 69%
Wind Speed SW 7 mph
Barometer 30.10 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Dec 3:55 pm EST
Extended Forecast for

2 Miles NNE Watts Bar Dam TN

  • Tonight

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

    Low: 55 °F

    Mostly Cloudy

  • Friday

    Friday: Patchy fog before 7am.  Otherwise, mostly cloudy, with a high near 70. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 70 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, partly sunny, with a high near 73. Calm wind.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 71. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 71 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 1am.  Mostly cloudy, with a low around 43. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 70%.

    Low: 43 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 1pm.  Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 55. Calm wind.
Friday
Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 70. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 73. Calm wind.
Saturday Night
Mostly cloudy, with a low around 55. Calm wind.
Sunday
Mostly cloudy, with a high near 71. Light south wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 43. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Sunny, with a high near 38.
Tuesday Night
Mostly clear, with a low around 20.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Mostly clear, with a low around 22.
New Year's Day
Sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Watts Bar Dam TN
 35.63°N 84.78°W (Elev. 741 ft)
12:31 pm EST Dec 25, 2025
4pm EST Dec 25, 2025-6pm EST Jan 1, 2026
 
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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