Sacramento River - Decker Island Weather Forecast

    • 62
    • 75

    Becoming Sunny

    • 62
    • 79

    Sunny

    • 61
    • 78

    Mostly Sunny

    • 62
    • 79

    Mostly Sunny

    • 63
    • 84

    Sunny

    • 65
    • 87

    Sunny

Today 11 Sep Carquinez Strait and Delta

Mostly sunny. Near the Bay, mostly cloudy in the morning then clearing. Highs 76 to 82. Southwest Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 11 Sep Carquinez Strait and Delta

Clear. Lows around 59. Southwest Winds around 10 Mph with Gusts to around 20 Mph.

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Sacramento River - Decker Island Temperature Statistics

September Temperature

Fairfield / Travis Air Force Base (16.8 miles)

  • Lowest 4 September, 2025

    57.4 °F

  • Average September

    68.6 °F

  • Highest 3 September, 2025

    92.5 °F

Climate (2020–Present)

Fairfield / Travis Air Force Base (16.8 miles)

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  • Average Low 2020–2025

    48.4 °F

  • Average 2020–2025

    60.5 °F

  • Average High 2020–2025

    75.5 °F
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