Eureka Weather Forecast

    • 48
    • 61

    Increasing Clouds

    • 48
    • 62

    Mostly Cloudy

    • 47
    • 61

    Partly Sunny

    • 50
    • 62

    Mostly Cloudy

    • 49
    • 62

    Mostly Cloudy

    • 51
    • 66

    Patchy Fog

    • 51
    • 66

    Partly Sunny

Today 6 May Northern Humboldt Coast

Mostly cloudy. Patchy fog in the morning. Highs 59 to 69. Light Winds becoming northwest around 10 Mph in the afternoon.

Tonight 6 May Northern Humboldt Coast

Mostly cloudy. Patchy fog overnight. Lows 42 to 52. Northwest wind around 10 Mph.

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Eureka Temperature Statistics

May Temperature

Arcata / Eureka, Arcata Airport (11.8 miles)

  • Lowest 3 May, 2026

    50.6 °F

  • Average May

    54.2 °F

  • Highest 4 May, 2026

    57.9 °F

Climate (2021–Present)

Arcata / Eureka, Arcata Airport (11.8 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    59.6 °F
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