Arcata Bay Weather Forecast

    • 51
    • 55

    Rain

    • 45
    • 53

    Rain Likely

    • 46
    • 53

    Mostly Cloudy

    • 44
    • 52

    Mostly Cloudy

    • 42
    • 51

    Chance Rain

    • 42
    • 49

    Chance Rain

    • 42
    • 50

    Chance Rain

Today 25 Oct Northern Coastal Humboldt

Mostly cloudy. Patchy fog in the morning. Highs 57 to 67. Light Winds becoming west around 5 Mph in the afternoon.

Tonight 25 Oct Northern Coastal Humboldt

Mostly cloudy. Chance of rain through the night. Lows 41 to 51. South wind up to 10 Mph.

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  • Temperature Real-Time

Arcata Bay Temperature Statistics

October Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 12 October, 2026

    35.7 °F

  • Average October

    53.1 °F

  • Highest 15 October, 2026

    81.6 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (9.3 miles)

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  • Average Low 2021–2026

    45.8 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    59.8 °F
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