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 81%
Wind Speed S 7 mph
Barometer 30.25 in (1024.0 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 24 Dec 4:53 am EST
Extended Forecast for

2 Miles WSW Friendsville TN

  • Overnight

    Overnight: A 30 percent chance of showers. Mostly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 69. Calm wind.

    High: 69 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 57. Calm wind becoming southwest around 5 mph after midnight.

    Low: 57 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: A 30 percent chance of showers. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph.

    Low: 57 °F

    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers. Mostly cloudy, with a high near 70. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.

    High: 70 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers. 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

  • Saturday

    Saturday: Mostly cloudy, with a high near 73.

    High: 73 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 55. Calm wind.
Wednesday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 69. Calm wind.
Wednesday Night
Mostly cloudy, with a low around 57. Calm wind becoming southwest around 5 mph after midnight.
Christmas Day
A 30 percent chance of showers. Mostly cloudy, with a high near 69. Southwest wind 5 to 10 mph.
Thursday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57. Southwest wind around 5 mph.
Friday
A 20 percent chance of showers. Mostly cloudy, with a high near 70. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 59. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday
Mostly cloudy, with a high near 73.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 29.
Monday
A 30 percent chance of snow showers. Mostly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 17.
Tuesday
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Friendsville TN
 35.75°N 84.16°W (Elev. 899 ft)
Last Update:
12:31 am EST Dec 24, 2025
Forecast Valid:
5am 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