Mattole River Mouth Weather Forecast

    • 53
    • 65

    Decreasing Clouds

    • 53
    • 65

    Mostly Sunny

    • 56
    • 67

    Mostly Sunny

    • 55
    • 68

    Mostly Sunny

    • 55
    • 69

    Mostly Sunny

    • 55
    • 68

    Mostly Sunny

Today 17 Aug Southwestern Humboldt

Partly cloudy then becoming mostly cloudy early in the afternoon then becoming partly cloudy. Highs 67 to 82. Northwest wind 5 to 15 Mph.

Tonight 17 Aug Southwestern Humboldt

Partly cloudy. Lows 46 to 56. North wind around 10 Mph.

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Mattole River Mouth Temperature Statistics

August Temperature

Fortuna Rohnerville Airport (20.5 miles)

  • Lowest 10 August, 2025

    48.2 °F

  • Average August

    58.8 °F

  • Highest 6 August, 2025

    75.2 °F

Climate (2020–Present)

Fortuna Rohnerville Airport (20.5 miles)

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  • Average Low 2020–2025

    45.1 °F

  • Average 2020–2025

    51.2 °F

  • Average High 2020–2025

    59.5 °F
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