Humboldt Lagoons State Park Weather Forecast

    • 46
    • 66

    Mostly Sunny

    • 50
    • 69

    Mostly Sunny

    • 49
    • 66

    Mostly Cloudy

    • 42
    • 57

    Mostly Cloudy

    • 45
    • 59

    Mostly Cloudy

    • 47
    • 60

    Mostly Cloudy

Today 18 Mar Northern Humboldt Coast

Partly cloudy until early afternoon then clearing. Patchy dense fog in the morning. Highs 63 to 77. Northeast wind around 5 Mph shifting to the northwest in the afternoon.

Tonight 18 Mar Northern Humboldt Coast

Partly cloudy. Patchy dense fog. Lows 41 to 51. North wind around 5 Mph shifting to the northeast overnight.

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Humboldt Lagoons State Park Temperature Statistics

March Temperature

Arcata / Eureka, Arcata Airport (17.4 miles)

  • Lowest 11 March, 2026

    35.1 °F

  • Average March

    50.2 °F

  • Highest 15 March, 2026

    61 °F

Climate (2021–Present)

Arcata / Eureka, Arcata Airport (17.4 miles)

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  • Average Low 2021–2026

    45.6 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    59.5 °F
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