7-Day Forecast 40.8°N 124.17°W (Text-Only)
NWS Forecast for: Eureka CA
Issued by: National Weather Service Eureka, CA
Last Update: 10:05 am PDT Sep 16, 2026
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  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 18. Northwest wind around 10 km/h.

    High: 18 °C

    Mostly Sunny


  • Tonight

    Tonight: Partly cloudy, with a low around 12. West northwest wind 5 to 8 km/h becoming southeast after midnight.

    Low: 12 °C

    Partly Cloudy


  • Thursday

    Thursday: Partly sunny, with a high near 19. Light and variable wind becoming west southwest 8 to 13 km/h in the afternoon.

    High: 19 °C

    Partly Sunny


  • Thursday
    Night

    Thursday Night: Mostly cloudy, with a low around 12. Calm wind.

    Low: 12 °C

    Mostly Cloudy


  • Friday

    Friday: Partly sunny, with a high near 18. Northeast wind 5 to 13 km/h becoming north northwest in the morning.

    High: 18 °C

    Partly Sunny


  • Friday
    Night

    Friday Night: Mostly cloudy, with a low around 11. North wind 8 to 13 km/h becoming light north northeast  after midnight.

    Low: 11 °C

    Mostly Cloudy


  • Saturday

    Saturday: Mostly cloudy, with a high near 18.

    High: 18 °C

    Mostly Cloudy


  • Saturday
    Night

    Saturday Night: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 12.

    Low: 12 °C

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, mostly cloudy, with a high near 16.

    High: 16 °C

    Patchy Fog
    then Mostly
    Cloudy

  • This Afternoon: Mostly sunny, with a high near 18. Northwest wind around 10 km/h.

    Tonight: Partly cloudy, with a low around 12. West northwest wind 5 to 8 km/h becoming southeast after midnight.

    Thursday: Partly sunny, with a high near 19. Light and variable wind becoming west southwest 8 to 13 km/h in the afternoon.

    Thursday Night: Mostly cloudy, with a low around 12. Calm wind.

    Friday: Partly sunny, with a high near 18. Northeast wind 5 to 13 km/h becoming north northwest in the morning.

    Friday Night: Mostly cloudy, with a low around 11. North wind 8 to 13 km/h becoming light north northeast after midnight.

    Saturday: Mostly cloudy, with a high near 18.

    Saturday Night: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 12.

    Sunday: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 16.

    Sunday Night: Mostly cloudy, with a low around 12.

    Monday: Partly sunny, with a high near 17.

    Monday Night: Partly cloudy, with a low around 12.

    Tuesday: Mostly sunny, with a high near 17.



    Eureka CA
     40.8°N 124.17°W (Elev. 3 m)

    Visit your local NWS office at: https://www.weather.gov/eka