Arcata Weather Forecast

    • 54
    • 65

    Increasing Clouds

    • 53
    • 63

    Mostly Cloudy

    • 52
    • 64

    Mostly Cloudy

    • 51
    • 65

    Areas Fog

    • 51
    • 60

    Patchy Fog

    • 52
    • 61

    Areas Fog

Today 27 Aug Northern Coastal Humboldt

Mostly cloudy until early afternoon then clearing. Slight chance of drizzle in the morning. Highs 62 to 72. Northwest wind around 10 Mph.

Tonight 27 Aug Northern Coastal Humboldt

Mostly cloudy. Slight chance of drizzle and patchy fog overnight. Lows 49 to 59. North wind up to 10 Mph.

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Arcata Temperature Statistics

August Temperature

Arcata / Eureka, Arcata Airport (7.5 miles)

  • Lowest 3 August, 2026

    47.6 °F

  • Average August

    58.5 °F

  • Highest 1 August, 2026

    71.7 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (7.5 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    59.7 °F
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