Arcata Bay Weather Forecast

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    Mostly Cloudy

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    Mostly Cloudy

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    • 60

    Mostly Cloudy

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    Mostly Cloudy

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    Mostly Cloudy

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    Mostly Cloudy

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    Mostly Cloudy

Today 9 May Northern Humboldt Coast

Mostly cloudy. Patchy fog in the morning. Highs 60 to 70. Northwest wind around 10 Mph.

Tonight 9 May Northern Humboldt Coast

Mostly cloudy. Patchy fog overnight. Lows 45 to 55. Northwest wind up to 10 Mph.

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  • Temperature Forecast NOAA

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Arcata Bay Temperature Statistics

May Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 3 May, 2026

    50.6 °F

  • Average May

    54.5 °F

  • Highest 4 May, 2026

    59.6 °F

Climate (2021–Present)

Arcata / Eureka, Arcata Airport (9.3 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.6 °F
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