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.

Rain

49°F

9°C

Humidity 73%
Wind Speed SE 18 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 26 Dec 03:53 AM PST
Extended Forecast for

Trinidad CA

Flood Watch December 26, 04:01am until December 26, 10:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch December 26, 04:01am until December 26, 10:00pm

    NOW until 10:00pm Fri

    Flood Watch

  • Overnight

    Low: 46 °F

    Showers and
    Windy

  • Friday

    Friday: Showers.  High near 51. Windy, with a south wind 16 to 22 mph, with gusts as high as 38 mph.  Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 51 °F

    Showers and
    Windy

  • Friday Night

    Friday Night: Showers, 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

    Showers then
    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers before 10am.  Partly sunny, then gradually becoming sunny, with a high near 49. North wind 7 to 15 mph.

    High: 49 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. North northeast wind 9 to 15 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52. Northeast wind around 8 mph.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

Detailed Forecast

Overnight
Showers. Low around 46. Windy, with a south southeast wind around 23 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers. High near 51. Windy, with a south wind 16 to 22 mph, with gusts as high as 38 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Friday Night
Showers, 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 showers before 10am. Partly sunny, then gradually becoming sunny, with a high near 49. North wind 7 to 15 mph.
Saturday Night
Mostly cloudy, with a low around 40. North northeast wind 9 to 15 mph.
Sunday
Mostly sunny, with a high near 52. Northeast wind around 8 mph.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 53.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 46.
Wednesday
A slight chance of rain. Partly sunny, with a high near 55.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 48.
New Year's Day
Rain likely. Cloudy, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Trinidad CA
 41.05°N 124.16°W (Elev. 0 ft)
1:10 am PST Dec 26, 2025
4am PST Dec 26, 2025-6pm PST Jan 1, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database