Arcata Bay Weather Forecast

    • 53
    • 58

    Increasing Clouds

    • 56
    • 59

    Mostly Cloudy

    • 55
    • 59

    Mostly Cloudy

    • 55
    • 59

    Patchy Fog

    • 54
    • 59

    Mostly Cloudy

    • 54
    • 58

    Mostly Cloudy

    • 53
    • 58

    Patchy Fog

Today 18 Jul Northern Coastal Humboldt

Mostly cloudy until early afternoon then becoming partly cloudy. Patchy fog in the morning. Highs 62 to 76. West wind around 10 Mph.

Tonight 18 Jul Northern Coastal Humboldt

Partly cloudy early in the evening then becoming mostly cloudy. Patchy fog. Lows 47 to 57. West wind around 10 Mph.

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  • Temperature Real-Time

Arcata Bay Temperature Statistics

July Temperature

Arcata / Eureka, Arcata Airport (9.3 miles)

  • Lowest 13 July, 2026

    46.9 °F

  • Average July

    56.4 °F

  • Highest 1 July, 2026

    67.6 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (9.3 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.7 °F
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