Colusa Weather Forecast

    • 59
    • 93

    Sunny

    • 57
    • 91

    Sunny

    • 58
    • 93

    Mostly Sunny

    • 59
    • 92

    Mostly Sunny

    • 59
    • 93

    Mostly Sunny

    • 59
    • 94

    Mostly Sunny

    • 58
    • 93

    Sunny

Today 29 Sep Eastern Colusa County

Clear. Lows around 59. Highs around 92.

Tonight 29 Sep Eastern Colusa County

Clear. Lows around 59. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

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Colusa Temperature Statistics

September Temperature

Marysville, Yuba County Airport (24.9 miles)

  • Lowest 5 September, 2026

    50.6 °F

  • Average September

    72.2 °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

    50.9 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    77.3 °F
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