Arcata Bay Weather Forecast

    • 44
    • 53

    Mostly Cloudy

    • 41
    • 54

    Mostly Sunny

    • 43
    • 59

    Partly Sunny

    • 44
    • 56

    Mostly Cloudy

    • 47
    • 57

    Mostly Cloudy

    • 50
    • 59

    Chance Rain

Today 22 Jan Northern Humboldt Coast

Mostly cloudy early in the morning then becoming partly cloudy. Patchy fog. Highs 47 to 57. Northwest wind around 10 Mph.

Tonight 22 Jan Northern Humboldt Coast

Partly cloudy. Patchy fog. Lows 35 to 45. Southwest wind around 5 Mph shifting to the west overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arcata Bay Temperature Statistics

January Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 9 January, 2026

    33.1 °F

  • Average January

    46.5 °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

    45.4 °F

  • Average 2021–2026

    52.1 °F

  • Average High 2021–2026

    59.2 °F
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