Eureka Weather Forecast

    • 51
    • 62

    Mostly Cloudy

    • 53
    • 64

    Partly Sunny

    • 54
    • 64

    Partly Sunny

    • 53
    • 64

    Partly Sunny

    • 51
    • 62

    Mostly Cloudy

    • 53
    • 61

    Mostly Cloudy

Today 21 Jun Northern Coastal Humboldt

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs 61 to 73. Northwest wind around 10 Mph.

Tonight 21 Jun Northern Coastal Humboldt

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog overnight. Lows 45 to 55. Northwest wind around 10 Mph in the evening becoming light.

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Eureka Temperature Statistics

June Temperature

Arcata / Eureka, Arcata Airport (11.8 miles)

  • Lowest 7 June, 2026

    39.7 °F

  • Average June

    54.5 °F

  • Highest 12 June, 2026

    66.7 °F

Climate (2021–2026)

Arcata / Eureka, Arcata Airport (11.8 miles)

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  • Average Low 2021–2026

    45.7 °F

  • Average 2021–2026

    52.5 °F

  • Average High 2021–2026

    59.6 °F
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