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.

Mostly Cloudy

61°F

16°C

Humidity 100%
Wind Speed SW 9 mph
Barometer 30.20 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 25 Dec 2:15 am EST
Extended Forecast for

Philadelphia TN

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly cloudy, with a low around 54. Southwest wind around 5 mph.

    Low: 54 °F

    Patchy Fog

  • Christmas Day

    Christmas Day: Patchy fog before 9am. Otherwise, partly sunny, with a high near 70. Southwest wind around 5 mph.

    High: 70 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

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

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 70. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 70 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers before 1am, then a chance of sprinkles after 1am. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 58 °F

    Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

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

    Low: 55 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 72.

    High: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Showers, mainly after 1am. Low around 39. Chance of precipitation is 80%.

    Low: 39 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 54. Southwest wind around 5 mph.
Christmas Day
Patchy fog before 9am. Otherwise, partly sunny, with a high near 70. Southwest wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 57. Calm wind becoming southwest around 5 mph.
Friday
Mostly cloudy, with a high near 70. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers before 1am, then a chance of sprinkles after 1am. Patchy fog between 1am and 3am. Otherwise, mostly cloudy, with a low around 58. Southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Saturday
Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 73. Calm wind becoming southwest around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 55. Calm wind becoming south around 5 mph after midnight.
Sunday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 72.
Sunday Night
Showers, mainly after 1am. Low around 39. Chance of precipitation is 80%.
Monday
A 50 percent chance of showers before 1pm. Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
Sunny, with a high near 37.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Philadelphia TN
 35.67°N 84.41°W (Elev. 846 ft)
Last Update:
12:31 am EST Dec 25, 2025
Forecast Valid:
2am 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