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

54°F

12°C

Humidity 100%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 54°F (12°C)
Visibility 7.00 mi
Last update 25 Dec 5:30 am EST
Extended Forecast for

4 Miles ENE Seymour TN

  • Christmas Day

    Christmas Day: A slight chance of showers between 11am and 2pm. Partly sunny, with a high near 68. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 68 °F

    Slight Chance
    Showers

  • Tonight

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

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 71 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers, mainly before 1am. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Partly sunny, with a high near 72. West wind around 5 mph.

    High: 72 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 55. Calm wind becoming south around 5 mph.

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Mostly cloudy, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 71 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly after 1am. Low around 42. Breezy. Chance of precipitation is 80%.

    Low: 42 °F

    Chance
    Showers then
    Showers and
    Breezy

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Showers
    Likely

Detailed Forecast

Christmas Day
A slight chance of showers between 11am and 2pm. Partly sunny, with a high near 68. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 58. Southwest wind around 5 mph.
Friday
A 30 percent chance of showers, mainly after 1pm. Partly sunny, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 50 percent chance of showers, mainly before 1am. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 72. West wind around 5 mph.
Saturday Night
Mostly cloudy, with a low around 55. Calm wind becoming south around 5 mph.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 71. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Showers, mainly after 1am. Low around 42. Breezy. Chance of precipitation is 80%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 21.
Wednesday
Sunny, with a high near 43.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Seymour TN
 35.9°N 83.73°W (Elev. 1004 ft)
Last Update:
12:31 am EST Dec 25, 2025
Forecast Valid:
5am EST Dec 25, 2025-6pm EST Dec 31, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation