Arcata Bay Weather Forecast

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    Rain

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    Rain

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    Rain

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    Rain

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    Rain

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    Rain

Today 17 Dec Northern Humboldt Coast

Mostly cloudy. Rain likely in the Morning, then slight chance of rain in the afternoon. Highs 52 to 62. Southeast wind around 5 Mph shifting to the northwest in the afternoon.

Tonight 17 Dec Northern Humboldt Coast

Cloudy. Chance of rain in the Evening, then rain overnight. Lows 41 to 51. Southeast wind 5 to 15 Mph.

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Arcata Bay Temperature Statistics

December Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 1 December, 2025

    37 °F

  • Average December

    47.9 °F

  • Highest 9 December, 2025

    59 °F

Climate (2020–Present)

Arcata / Eureka, Arcata Airport (9.3 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    59.3 °F
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