Colusa Weather Forecast

    • 55
    • 81

    Sunny

    • 54
    • 89

    Sunny

    • 55
    • 89

    Sunny

    • 54
    • 85

    Sunny

    • 55
    • 85

    Sunny

    • 55
    • 90

    Mostly Sunny

Today 13 Sep Eastern Colusa County

Haze until late afternoon. Sunny. Highs around 81. North Winds up to 10 Mph.

Tonight 13 Sep Eastern Colusa County

Clear. Lows around 57. Northwest Winds up to 10 Mph. Gusts up to 30 Mph after midnight.

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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

    73.6 °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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