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

Chattanooga, Lovell Field (KCHA)

Lat: 35.03°NLon: 85.2°WElev: 679ft.

Mostly Cloudy

69°F

21°C

Humidity 68%
Wind Speed SW 10 mph
Barometer 30.12 in (1019.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 25 Dec 12:53 pm EST
Extended Forecast for

Harrison TN

  • Christmas Day

    Christmas Day: Partly sunny, with a high near 71. Southwest wind around 5 mph.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Calm wind.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 71. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 71 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 75. Calm wind becoming southwest around 5 mph.

    High: 75 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 59. Calm wind.

    Low: 59 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 72. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.

    Low: 47 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Showers
    Likely

Detailed Forecast

Christmas Day
Partly sunny, with a high near 71. Southwest wind around 5 mph.
Tonight
Mostly cloudy, with a low around 58. Calm wind.
Friday
Mostly cloudy, with a high near 71. South wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 58. Southwest wind around 5 mph becoming calm in the evening.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 75. Calm wind becoming southwest around 5 mph.
Saturday Night
Mostly cloudy, with a low around 59. Calm wind.
Sunday
Mostly cloudy, with a high near 72. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 40.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Harrison TN
 35.14°N 85.15°W (Elev. 856 ft)
Last Update:
12:31 pm EST Dec 25, 2025
Forecast Valid:
1pm EST Dec 25, 2025-6pm EST Dec 31, 2025
 
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