National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Eureka WFO (EKA01)

Lat: 40.8098°NLon: 124.1602°WElev: 20.0ft.

Mist

49°F

9°C

Humidity NA
Wind Speed N 0 MPH
Barometer NA
Dewpoint N/A
Visibility 4.00 mi
Last update NA
Extended Forecast for

Eureka CA

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 45. Light south southeast wind.

    Low: 45 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: A slight chance of drizzle. Mostly cloudy, with a high near 59. Light west southwest wind.

    High: 59 °F

    Slight Chance
    Drizzle

  • Monday Night

    Monday Night: A slight chance of drizzle. Mostly cloudy, with a low around 46. Calm wind becoming southeast around 6 mph in the evening.

    Low: 46 °F

    Slight Chance
    Drizzle

  • Tuesday

    Tuesday: A chance of drizzle, mainly after 10am. Mostly cloudy, with a high near 60. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 60 °F

    Chance
    Drizzle

  • Tuesday Night

    Tuesday Night: A chance of drizzle. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Chance
    Drizzle and
    Patchy Fog

  • Wednesday

    Wednesday: A chance of drizzle, mainly before 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 60. Light and variable wind.

    High: 60 °F

    Chance
    Drizzle and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: A slight chance of drizzle before 10pm. Mostly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Drizzle then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 45. Light south southeast wind.
Monday
A slight chance of drizzle. Mostly cloudy, with a high near 59. Light west southwest wind.
Monday Night
A slight chance of drizzle. Mostly cloudy, with a low around 46. Calm wind becoming southeast around 6 mph in the evening.
Tuesday
A chance of drizzle, mainly after 10am. Mostly cloudy, with a high near 60. Calm wind becoming west southwest around 6 mph in the afternoon.
Tuesday Night
A chance of drizzle. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 49. Calm wind.
Wednesday
A chance of drizzle, mainly before 4pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 60. Light and variable wind.
Wednesday Night
A slight chance of drizzle before 10pm. Mostly cloudy, with a low around 47.
Thursday
Partly sunny, with a high near 59.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 44.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
A slight chance of drizzle. Mostly cloudy, with a low around 45.
Sunday
A chance of rain or drizzle. Patchy fog. Otherwise, mostly cloudy, with a high near 59.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka CA
 40.8°N 124.17°W (Elev. 3 ft)
Last Update:
1:10 pm PST Dec 7, 2025
Forecast Valid:
8pm PST Dec 7, 2025-6pm PST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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