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

Heavy Rainfall to Bring Flooding Threat to California; Heavy Snow in the Sierra

A strong atmospheric river will bring heavy rainfall to California through the holiday week. The heaviest rainfall is expected on Wednesday in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall is expected in the Sierra Nevada from the atmospheric river, raising concerns for major snow‐load impacts. Travel may be difficult to impossible over the passes. Read More >

Current conditions at

Knoxville, McGhee Tyson Airport (KTYS)

Lat: 35.82°NLon: 83.99°WElev: 981ft.

Overcast

58°F

14°C

Humidity 84%
Wind Speed SW 9 mph
Barometer 30.26 in (1024.3 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 24 Dec 5:53 am EST
Extended Forecast for

Townsend TN

  • Today

    Today: A 40 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 71. Calm wind.

    High: 71 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 55. Calm wind becoming southwest around 5 mph after midnight.

    Low: 55 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Christmas Day

    Christmas Day: A 50 percent chance of showers after 7am. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.

    Low: 56 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of showers. Partly sunny, with a high near 72. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 72 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 75. Southwest wind around 5 mph.

    High: 75 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.

    High: 71 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
A 40 percent chance of showers, mainly before 9am. Mostly cloudy, with a high near 71. Calm wind.
Tonight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 55. Calm wind becoming southwest around 5 mph after midnight.
Christmas Day
A 50 percent chance of showers after 7am. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 56. Southwest wind around 5 mph becoming calm.
Friday
A 40 percent chance of showers. Partly sunny, with a high near 72. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph. Chance of precipitation is 60%.
Saturday
Mostly cloudy, with a high near 75. Southwest wind around 5 mph.
Saturday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 56.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 41.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Townsend TN
 35.68°N 83.75°W (Elev. 1093 ft)
Last Update:
6:06 am EST Dec 24, 2025
Forecast Valid:
6am EST Dec 24, 2025-6pm EST Dec 30, 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