South Bay Weather Forecast

    • 54
    • 58

    Increasing Clouds

    • 54
    • 59

    Decreasing Clouds

    • 55
    • 60

    Mostly Cloudy

    • 57
    • 62

    Slight Chance Thunderstorms

    • 55
    • 61

    Mostly Cloudy

    • 55
    • 62

    Partly Sunny

    • 57
    • 64

    Partly Sunny

Today 3 Aug Northern Humboldt Coast

Mostly cloudy. Patchy drizzle and fog in the morning. Highs 59 to 69. Northwest wind 5 to 15 Mph.

Tonight 3 Aug Northern Humboldt Coast

Mostly cloudy. Lows 47 to 57. Northwest wind 5 to 15 Mph.

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  • Temperature Forecast NOAA

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South Bay Temperature Statistics

August Temperature

Fortuna Rohnerville Airport (11.2 miles)

  • Lowest 1 August, 2025

    53.6 °F

  • Average August

    58 °F

  • Highest 1 August, 2025

    66.2 °F

Climate (2020–Present)

Fortuna Rohnerville Airport (11.2 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    59.5 °F
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