Sinkyone Wilderness State Park Weather Forecast

    • 61
    • 74

    Mostly Sunny

    • 60
    • 72

    Mostly Sunny

    • 59
    • 74

    Mostly Sunny

    • 60
    • 71

    Partly Sunny

    • 59
    • 67

    Partly Sunny

    • 58
    • 67

    Partly Sunny

Today 15 Sep Mendocino Coast

Sunny. Highs 71 to 86. Northeast wind around 10 Mph shifting to the west in the afternoon.

Tonight 15 Sep Mendocino Coast

Mostly clear. Lows 53 to 63. North wind around 5 Mph shifting to the east overnight.

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Sinkyone Wilderness State Park Temperature Statistics

September Temperature

Fortuna Rohnerville Airport (42.9 miles)

  • Lowest 7 September, 2025

    51.8 °F

  • Average September

    58.7 °F

  • Highest 13 September, 2025

    69.8 °F

Climate (2020–Present)

Fortuna Rohnerville Airport (42.9 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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