Colusa Weather Forecast

    • 42
    • 52

    Dense Fog

    • 43
    • 52

    Mostly Cloudy

    • 43
    • 57

    Mostly Cloudy

    • 46
    • 58

    Mostly Cloudy

    • 47
    • 61

    Partly Sunny

    • 44
    • 62

    Partly Sunny

    • 43
    • 60

    Partly Sunny

Today 6 Dec Central Sacramento Valley

Mostly cloudy in the morning then becoming partly cloudy. Patchy fog until late afternoon. Highs 54 to 60. Light Winds.

Tonight 6 Dec Central Sacramento Valley

Mostly clear in the evening then becoming mostly cloudy. Patchy fog in the late evening and overnight. Lows around 42. Light Winds.

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Colusa Temperature Statistics

December Temperature

Marysville, Yuba County Airport (24.9 miles)

  • Lowest 2 December, 2025

    36 °F

  • Average December

    46.2 °F

  • Highest 3 December, 2025

    62.1 °F

Climate (2020–Present)

Marysville, Yuba County Airport (24.9 miles)

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  • Average Low 2020–2025

    51 °F

  • Average 2020–2025

    64.2 °F

  • Average High 2020–2025

    77.9 °F
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