Colusa Weir Recreation Area Weather Forecast

    • 52
    • 76

    Sunny

    • 55
    • 88

    Sunny

    • 56
    • 92

    Mostly Sunny

    • 56
    • 87

    Partly Sunny

    • 55
    • 89

    Mostly Sunny

    • 57
    • 88

    Mostly Sunny

    • 57
    • 89

    Mostly Sunny

Today 17 Sep Eastern Colusa County

Mostly cloudy in the morning then clearing. Highs around 76. Light Winds.

Tonight 17 Sep Eastern Colusa County

Clear. Lows around 54. Light Winds.

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Colusa Weir Recreation Area Temperature Statistics

September Temperature

Marysville, Yuba County Airport (24.9 miles)

  • Lowest 5 September, 2026

    50.6 °F

  • Average September

    73.3 °F

  • Highest 10 September, 2026

    104.6 °F

Climate (2021–2026)

Marysville, Yuba County Airport (24.9 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    77.3 °F
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