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

Anderson, Anderson County Airport (KAND)

Lat: 34.5°NLon: 82.71°WElev: 781ft.

Mostly Cloudy

55°F

13°C

Humidity 87%
Wind Speed Calm
Barometer 30.21 in (1022.4 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 24 Dec 11:56 pm EST
Extended Forecast for

Williamston SC

  • Overnight

    Overnight: Partly cloudy, with a low around 52. Calm wind.

    Low: 52 °F

    Partly Cloudy

  • Christmas Day

    Christmas Day: Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 75. Light west southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.

    High: 75 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 52. West southwest wind 3 to 8 mph.

    Low: 52 °F

    Mostly Clear
    then Patchy
    Fog

  • Friday

    Friday: A slight chance of rain between 10am and 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 70. North wind 5 to 9 mph becoming south southwest in the morning. Chance of precipitation is 20%.

    High: 70 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Partly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54. West southwest wind around 7 mph.

    Low: 54 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 52. Calm wind.
Christmas Day
Patchy fog between 8am and 9am. Otherwise, sunny, with a high near 75. Light west southwest wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 52. West southwest wind 3 to 8 mph.
Friday
A slight chance of rain between 10am and 11am. Patchy fog before 8am. Otherwise, partly sunny, with a high near 70. North wind 5 to 9 mph becoming south southwest in the morning. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 54. West southwest wind around 7 mph.
Saturday
Sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
Partly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Sunny, with a high near 47.
Tuesday Night
Mostly clear, with a low around 24.
Wednesday
Sunny, with a high near 51.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamston SC
 34.62°N 82.48°W (Elev. 817 ft)
Last Update:
6:18 pm EST Dec 24, 2025
Forecast Valid:
12am EST Dec 25, 2025-6pm EST Dec 31, 2025
 
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Additional Resources

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