Chaparral Mountain Weather Forecast

    • 59
    • 75

    Mostly Sunny

    • 63
    • 77

    Slight Chance Thunderstorms

    • 60
    • 74

    Slight Chance Rain

    • 57
    • 73

    Partly Sunny

    • 57
    • 71

    Sunny

    • 63
    • 79

    Mostly Sunny

    • 61
    • 77

    Chance Rain

Today 17 Sep Southern Humboldt Interior

Sunny. Highs 78 to 93.

Tonight 17 Sep Southern Humboldt Interior

Mostly clear. Lows 51 to 61.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chaparral Mountain Temperature Statistics

September Temperature

Fortuna Rohnerville Airport (21.1 miles)

  • Lowest 7 September, 2025

    51.8 °F

  • Average September

    59 °F

  • Highest 14 September, 2025

    71.6 °F

Climate (2020–Present)

Fortuna Rohnerville Airport (21.1 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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