Humboldt Lagoons State Park Weather Forecast

    • 55
    • 64

    Chance Rain Showers

    • 53
    • 65

    Mostly Cloudy

    • 54
    • 70

    Mostly Sunny

    • 53
    • 69

    Partly Sunny

    • 52
    • 67

    Partly Sunny

    • 53
    • 67

    Partly Sunny

Today 13 Sep Northern Humboldt Coast

Cloudy until early afternoon then becoming partly cloudy. Slight chance of drizzle and patchy fog in the morning. Highs 62 to 72. West wind around 10 Mph.

Tonight 13 Sep Northern Humboldt Coast

Mostly cloudy. Chance of rain Showers and slight chance of Thunderstorms overnight. Lows 50 to 60. North wind around 5 Mph shifting to the southeast overnight.

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Humboldt Lagoons State Park Temperature Statistics

September Temperature

Arcata / Eureka, Arcata Airport (17.4 miles)

  • Lowest 8 September, 2025

    51.1 °F

  • Average September

    59 °F

  • Highest 8 September, 2025

    70 °F

Climate (2020–Present)

Arcata / Eureka, Arcata Airport (17.4 miles)

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  • Average Low 2020–2025

    45.3 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    59.3 °F
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