Moonstone Beach Weather Forecast

    • 52
    • 63

    Mostly Sunny

    • 53
    • 67

    Mostly Sunny

    • 52
    • 66

    Mostly Cloudy

    • 48
    • 57

    Mostly Cloudy

    • 48
    • 59

    Mostly Cloudy

    • 51
    • 60

    Rain Likely

Today 18 Mar Northern Humboldt Coast

Partly cloudy in the morning then clearing. Highs 63 to 77. Northeast wind around 5 Mph shifting to the northwest in the afternoon.

Tonight 18 Mar Northern Humboldt Coast

Mostly clear. Lows 41 to 51. North wind around 5 Mph shifting to the east overnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Moonstone Beach Temperature Statistics

March Temperature

Arcata / Eureka, Arcata Airport (3.1 miles)

  • Lowest 11 March, 2026

    35.1 °F

  • Average March

    50.2 °F

  • Highest 15 March, 2026

    61 °F

Climate (2021–Present)

Arcata / Eureka, Arcata Airport (3.1 miles)

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  • Average Low 2021–2026

    45.6 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    59.5 °F
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