Sacramento River - Decker Island Weather Forecast

    • 59
    • 79

    Breezy

    • 56
    • 74

    Breezy

    • 57
    • 77

    Sunny

    • 58
    • 80

    Sunny

    • 59
    • 80

    Mostly Sunny

    • 59
    • 78

    Sunny

    • 61
    • 85

    Sunny

Today 3 Jul Carquinez Strait and Delta

Mostly sunny. Near the Bay, mostly cloudy in the morning then becoming partly cloudy. Highs 82 to 88. Southwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

Tonight 3 Jul Carquinez Strait and Delta

Clear. Lows 53 to 59. Southwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

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Sacramento River - Decker Island Temperature Statistics

July Temperature

Fairfield / Travis Air Force Base (16.8 miles)

  • Lowest 1 July, 2025

    55.6 °F

  • Average July

    69.9 °F

  • Highest 1 July, 2025

    90.5 °F

Climate (2020–Present)

Fairfield / Travis Air Force Base (16.8 miles)

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  • Average Low 2020–2025

    48.5 °F

  • Average 2020–2025

    60.6 °F

  • Average High 2020–2025

    75.6 °F
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