Humboldt Redwoods State Park Weather Forecast

    • 59
    • 74

    Mostly Cloudy

    • 58
    • 74

    Mostly Cloudy

    • 55
    • 74

    Mostly Sunny

    • 56
    • 73

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 58
    • 76

    Chance Rain

    • 55
    • 72

    Slight Chance Rain

Today 18 Sep Southern Humboldt Interior

Mostly cloudy. Slight chance of rain in the afternoon. Highs 77 to 92.

Tonight 18 Sep Southern Humboldt Interior

Mostly cloudy. Slight chance of rain Showers and isolated Thunderstorms. Lows 54 to 64.

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Humboldt Redwoods State Park Temperature Statistics

September Temperature

Fortuna Rohnerville Airport (18 miles)

  • Lowest 7 September, 2025

    51.8 °F

  • Average September

    59.1 °F

  • Highest 16 September, 2025

    73.4 °F

Climate (2020–Present)

Fortuna Rohnerville Airport (18 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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