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

Arcata / Eureka, Arcata Airport (KACV)

Lat: 40.97806°NLon: 124.10861°WElev: 217.0ft.

Mostly Cloudy

54°F

12°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.52 in (999.66 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 24 Dec 03:53 PM PST
Extended Forecast for

Trinidad CA

Flood Watch December 24, 04:10pm until December 26, 10:00pm
Wind Advisory December 24, 10:00pm until December 25, 02:00pm
Click here for hazard details and duration
Flood Watch
Wind Advisory
  •  
    Flood Watch December 24, 04:10pm until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Tonight

    Low: 48 °F

    Rain and
    Windy

  • Christmas Day

    Christmas Day: Showers and possibly a thunderstorm.  High near 53. Very windy, with a south wind 29 to 39 mph, with gusts as high as 50 mph.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 53 °F

    Showers and
    Very Windy

  • Thursday Night

    Thursday Night: Rain.  Low around 47. Windy, with a south southeast wind 24 to 28 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Rain and
    Windy

  • Friday

    Friday: Rain.  High near 51. Windy, with a south wind 16 to 22 mph, with gusts as high as 29 mph.  Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 51 °F

    Rain and
    Windy

  • Friday Night

    Friday Night: Rain, mainly before 10pm.  Low around 43. North wind 8 to 11 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain then
    Chance Rain

  • Saturday

    Saturday: A 30 percent chance of rain before 10am.  Sunny, with a high near 49. North wind 8 to 14 mph.

    High: 49 °F

    Chance Rain
    then Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

Tonight
Rain after 7pm. Low around 48. Windy, with a southeast wind 7 to 12 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Christmas Day
Showers and possibly a thunderstorm. High near 53. Very windy, with a south wind 29 to 39 mph, with gusts as high as 50 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Rain. Low around 47. Windy, with a south southeast wind 24 to 28 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Rain. High near 51. Windy, with a south wind 16 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Friday Night
Rain, mainly before 10pm. Low around 43. North wind 8 to 11 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 30 percent chance of rain before 10am. Sunny, with a high near 49. North wind 8 to 14 mph.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 43.
Monday
Sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
Trinidad CA
 41.05°N 124.16°W (Elev. 0 ft)
1:28 pm PST Dec 24, 2025
4pm PST Dec 24, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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