Colusa Weather Forecast

    • 60
    • 92

    Mostly Sunny

    • 63
    • 97

    Hot

    • 61
    • 99

    Hot

    • 58
    • 92

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

    • 57
    • 84

    Mostly Sunny

Today 8 Sep Eastern Colusa County

Sunny. Highs around 91. North Winds up to 10 Mph.

Tonight 8 Sep Eastern Colusa County

Mostly clear. Lows around 61. Light Winds.

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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

    68.5 °F

  • Highest 6 September, 2026

    84.9 °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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