Arcata Weather Forecast

    • 51
    • 61

    Rain Showers Likely

    • 45
    • 61

    Chance Rain Showers

    • 46
    • 62

    Partly Sunny

    • 44
    • 61

    Partly Sunny

    • 43
    • 57

    Partly Sunny

    • 45
    • 60

    Mostly Sunny

Today 12 May Northern Humboldt Coast

Mostly cloudy. Patchy fog in the morning. Highs 59 to 70. Northwest wind around 10 Mph.

Tonight 12 May Northern Humboldt Coast

Mostly cloudy. Patchy fog overnight. Chance of rain Showers overnight. Lows 45 to 55. Northwest wind around 10 Mph shifting to the southwest overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Arcata Temperature Statistics

May Temperature

Arcata / Eureka, Arcata Airport (7.5 miles)

  • Lowest 9 May, 2026

    45 °F

  • Average May

    54.4 °F

  • Highest 10 May, 2026

    60.1 °F

Climate (2021–Present)

Arcata / Eureka, Arcata Airport (7.5 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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