Arcata Bay Weather Forecast

    • 45
    • 54

    Breezy

    • 46
    • 55

    Mostly Sunny

    • 49
    • 55

    Partly Sunny

    • 52
    • 57

    Mostly Sunny

    • 53
    • 60

    Partly Sunny

    • 52
    • 58

    Mostly Cloudy

Today 11 Oct Northern Coastal Humboldt

Sunny, breezy. Highs 55 to 65. North wind 15 to 25 Mph.

Tonight 11 Oct Northern Coastal Humboldt

Mostly clear. Lows 37 to 47. North wind 10 to 20 Mph.

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Arcata Bay Temperature Statistics

October Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 4 October, 2026

    44.7 °F

  • Average October

    53.3 °F

  • Highest 1 October, 2026

    61.6 °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

    59.7 °F
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