Colusa Weather Forecast

    • 73
    • 84

    Mostly Cloudy

    • 76
    • 90

    Partly Sunny

    • 74
    • 93

    Mostly Sunny

    • 73
    • 91

    Chance Thunderstorms

    • 72
    • 87

    Chance Thunderstorms

    • 73
    • 88

    Slight Chance Thunderstorms

    • 73
    • 92

    Mostly Sunny

Today 21 Jul Hancock

Mostly cloudy. Highs in the lower 80s. Southeast Winds 5 to 10 Mph.

Tonight 21 Jul Hancock

Mostly cloudy this Evening, then becoming partly cloudy. A slight chance of Showers and Thunderstorms early. Humid with Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

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Colusa Temperature Statistics

July Temperature

Fort Madison Municipal Airport (9.9 miles)

  • Lowest 1 July, 2025

    64.4 °F

  • Average July

    76.4 °F

  • Highest 11 July, 2025

    91.4 °F

Climate (2020–Present)

Fort Madison Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    45.4 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    64.2 °F
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