Arcata Airport Weather Forecast

    • 40
    • 58

    Partly Sunny

    • 40
    • 59

    Partly Sunny

    • 43
    • 60

    Partly Sunny

    • 48
    • 60

    Mostly Cloudy

    • 51
    • 62

    Rain

    • 46
    • 59

    Rain

    • 46
    • 55

    Rain

Today 11 Dec Northern Humboldt Coast

Partly cloudy. Patchy dense fog in the morning. Highs 55 to 65. North wind up to 10 Mph.

Tonight 11 Dec Northern Humboldt Coast

Partly cloudy then becoming mostly cloudy in the late evening and overnight then becoming partly cloudy. Patchy fog. Lows 39 to 49. North wind around 10 Mph.

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Arcata Airport Temperature Statistics

December Temperature

Arcata / Eureka, Arcata Airport (0 miles)

  • Lowest 1 December, 2025

    37 °F

  • Average December

    48.2 °F

  • Highest 9 December, 2025

    59 °F

Climate (2020–Present)

Arcata / Eureka, Arcata Airport (0 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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