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

Monroe County Airport (KMNV)

Lat: 35.55°NLon: 84.38°WElev: 1031ft.

Overcast

63°F

17°C

Humidity 88%
Wind Speed SW 5 mph
Barometer 30.32 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 24 Dec 9:35 am EST
Extended Forecast for

Loudon TN

  • Today

    Today: Mostly cloudy, with a high near 69. Calm wind.

    High: 69 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 56. Calm wind becoming southwest around 5 mph after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Christmas Day

    Christmas Day: A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 69. Southwest wind around 5 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. Calm wind becoming southwest 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 20 mph.

    High: 70 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly before 1am. 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. Southwest wind around 5 mph.

    High: 73 °F

    Mostly Cloudy

  • Saturday Night

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

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Today
Mostly cloudy, with a high near 69. Calm wind.
Tonight
Mostly cloudy, with a low around 56. Calm wind becoming southwest around 5 mph after midnight.
Christmas Day
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 69. Southwest wind around 5 mph.
Thursday Night
A 30 percent chance of showers, mainly before 1am. Mostly cloudy, with a low around 57. Calm wind becoming southwest 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 20 mph.
Friday Night
A 40 percent chance of showers, mainly before 1am. 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. Southwest wind around 5 mph.
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 28.
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 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Loudon TN
 35.74°N 84.32°W (Elev. 781 ft)
Last Update:
6:06 am EST Dec 24, 2025
Forecast Valid:
9am 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