Mattole River Mouth Weather Forecast

    • 54
    • 62

    Mostly Sunny

    • 56
    • 70

    Partly Sunny

    • 60
    • 72

    Partly Sunny

    • 62
    • 74

    Partly Sunny

    • 58
    • 71

    Partly Sunny

    • 56
    • 67

    Partly Sunny

    • 56
    • 65

    Partly Sunny

Today 6 Sep Southwestern Humboldt

Sunny. Highs 60 to 75. North wind 5 to 15 Mph.

Tonight 6 Sep Southwestern Humboldt

Partly cloudy. Lows 46 to 56. North wind 5 to 15 Mph.

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  • Temperature Real-Time

Mattole River Mouth Temperature Statistics

September Temperature

Fortuna Rohnerville Airport (20.5 miles)

  • Lowest 4 September, 2026

    46.4 °F

  • Average September

    58.2 °F

  • Highest 1 September, 2026

    71.6 °F

Climate (2021–2026)

Fortuna Rohnerville Airport (20.5 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.8 °F
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