Arcata Bay Weather Forecast

    • 38
    • 50

    Partly Sunny

    • 42
    • 56

    Mostly Sunny

    • 44
    • 55

    Mostly Cloudy

    • 44
    • 57

    Partly Sunny

    • 48
    • 57

    Partly Sunny

    • 48
    • 59

    Partly Sunny

Today 8 Jan Northern Humboldt Coast

Mostly cloudy early in the morning then clearing. Slight chance of rain in the morning. Highs 44 to 54. North wind up to 10 Mph.

Tonight 8 Jan Northern Humboldt Coast

Partly cloudy. Lows 29 to 39. Northeast wind around 5 Mph shifting to the southeast overnight.

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Arcata Bay Temperature Statistics

January Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 6 January, 2026

    42.1 °F

  • Average January

    51.9 °F

  • Highest 2 January, 2026

    64 °F

Climate (2021–Present)

Arcata / Eureka, Arcata Airport (9.3 miles)

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  • Average Low 2021–2026

    45.5 °F

  • Average 2021–2026

    52.2 °F

  • Average High 2021–2026

    59.3 °F
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