Cooks Valley Weather Forecast

    • 42
    • 63

    Mostly Cloudy

    • 37
    • 59

    Mostly Cloudy

    • 41
    • 63

    Mostly Sunny

    • 43
    • 66

    Mostly Sunny

    • 44
    • 68

    Mostly Sunny

    • 44
    • 66

    Mostly Sunny

    • 43
    • 64

    Partly Sunny

Today 31 Jan Southern Humboldt Interior

Mostly cloudy. Highs 58 to 68.

Tonight 31 Jan Southern Humboldt Interior

Mostly cloudy. Chance of rain Showers overnight. Snow level 5000 feet. Lows 41 to 51.

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Cooks Valley Temperature Statistics

January Temperature

Fortuna Rohnerville Airport (41.6 miles)

  • Lowest 9 January, 2026

    32 °F

  • Average January

    46.6 °F

  • Highest 16 January, 2026

    64.4 °F

Climate (2021–Present)

Fortuna Rohnerville Airport (41.6 miles)

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  • Average Low 2021–2026

    45.1 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    59.5 °F
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