South Jetty Weather Forecast

    • 45
    • 56

    Mostly Cloudy

    • 44
    • 54

    Mostly Cloudy

    • 46
    • 55

    Mostly Cloudy

    • 46
    • 54

    Mostly Cloudy

    • 46
    • 53

    Partly Sunny

    • 46
    • 53

    Mostly Cloudy

    • 46
    • 54

    Slight Chance Rain

Today 18 Jan Northern Humboldt Coast

Mostly cloudy early in the morning then becoming partly cloudy. Patchy fog in the morning. Highs 56 to 66. North wind around 10 Mph.

Tonight 18 Jan Northern Humboldt Coast

Mostly cloudy. Patchy dense fog. Lows 34 to 44. Northwest wind around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Jetty Temperature Statistics

January Temperature

Fortuna Rohnerville Airport (15.5 miles)

  • Lowest 9 January, 2026

    32 °F

  • Average January

    46.2 °F

  • Highest 16 January, 2026

    64.4 °F

Climate (2021–Present)

Fortuna Rohnerville Airport (15.5 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.4 °F
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