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

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

Knoxville Downtown Airport (KDKX)

Lat: 35.97°NLon: 83.87°WElev: 827ft.

Overcast

61°F

16°C

Humidity 94%
Wind Speed SW 3 mph
Barometer 30.09 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 25 Dec 10:35 pm EST
Extended Forecast for

Seymour TN

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southwest wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 70. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind around 5 mph becoming calm.

    High: 72 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. Calm wind.

    Low: 54 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 71. Southwest wind 5 to 15 mph, with gusts 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 47. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    Low: 47 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 70%.

    High: 58 °F

    Showers
    Likely and
    Breezy

  • Monday Night

    Monday Night: A slight chance of rain showers before 11pm, then a slight chance of snow showers between 11pm and 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. Southwest wind around 5 mph.
Friday
Mostly cloudy, with a high near 70. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind around 5 mph becoming calm.
Saturday Night
Partly cloudy, with a low around 54. Calm wind.
Sunday
Mostly cloudy, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 47. Southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. Breezy. Chance of precipitation is 70%.
Monday Night
A slight chance of rain showers before 11pm, then a slight chance of snow showers between 11pm and 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Mostly clear, with a low around 22.
Wednesday
Mostly sunny, with a high near 43.
Wednesday Night
Mostly clear, with a low around 25.
New Year's Day
Sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Seymour TN
 35.88°N 83.76°W (Elev. 1086 ft)
Last Update:
6:06 pm EST Dec 25, 2025
Forecast Valid:
10pm EST Dec 25, 2025-6pm EST Jan 1, 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