Arcata Bay - Eureka Slough Bridge Weather Forecast

    • 53
    • 62

    Mostly Cloudy

    • 52
    • 63

    Decreasing Clouds

    • 54
    • 64

    Mostly Cloudy

    • 57
    • 66

    Mostly Cloudy

    • 55
    • 64

    Mostly Cloudy

    • 56
    • 66

    Partly Sunny

    • 57
    • 68

    Partly Sunny

Today 3 Aug Northern Humboldt Coast

Mostly cloudy. Patchy drizzle and fog in the morning. Highs 59 to 69. Northwest wind 5 to 15 Mph.

Tonight 3 Aug Northern Humboldt Coast

Mostly cloudy. Lows 47 to 57. Northwest wind 5 to 15 Mph.

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Arcata Bay - Eureka Slough Bridge Temperature Statistics

August Temperature

Arcata / Eureka, Arcata Airport (11.8 miles)

  • Lowest 1 August, 2025

    52 °F

  • Average August

    57.6 °F

  • Highest 1 August, 2025

    62.1 °F

Climate (2020–Present)

Arcata / Eureka, Arcata Airport (11.8 miles)

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  • Average Low 2020–2025

    45.2 °F

  • Average 2020–2025

    52 °F

  • Average High 2020–2025

    59.3 °F
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