Petrolia Weather Forecast

    • 56
    • 83

    Mostly Sunny

    • 55
    • 79

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 55
    • 76

    Mostly Sunny

    • 54
    • 73

    Partly Sunny

Today 8 Aug Southwestern Humboldt

Sunny. Highs 86 to 101. North wind 5 to 15 Mph.

Tonight 8 Aug Southwestern Humboldt

Mostly clear. Lows 54 to 64. North wind 10 to 20 Mph.

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Petrolia Temperature Statistics

August Temperature

Fortuna Rohnerville Airport (17.4 miles)

  • Lowest 3 August, 2026

    48.2 °F

  • Average August

    59.1 °F

  • Highest 1 August, 2026

    71.6 °F

Climate (2021–2026)

Fortuna Rohnerville Airport (17.4 miles)

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  • Average Low 2021–2026

    45.3 °F

  • Average 2021–2026

    51.4 °F

  • Average High 2021–2026

    59.8 °F
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