Colusa Weather Forecast

    • 54
    • 89

    Increasing Clouds

    • 53
    • 81

    Mostly Sunny

    • 55
    • 82

    Mostly Sunny

    • 56
    • 90

    Sunny

    • 56
    • 89

    Mostly Sunny

    • 55
    • 87

    Mostly Sunny

Today 15 Sep Eastern Colusa County

Sunny. Highs around 88. Southeast Winds up to 10 Mph.

Tonight 15 Sep Eastern Colusa County

Clear. Lows around 55. Southeast 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

    73.4 °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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