San Joaquin River - West Island Weather Forecast

    • 62
    • 83

    Sunny

    • 62
    • 86

    Sunny

    • 61
    • 79

    Mostly Sunny

    • 61
    • 76

    Mostly Sunny

    • 61
    • 77

    Mostly Sunny

    • 61
    • 80

    Sunny

Today 13 Jul Carquinez Strait and Delta

Sunny. Near the Bay, mostly cloudy in the morning then clearing. Highs 85 to 91. Except 78 to 84 near the bay. West Winds 10 to 15 Mph with Gusts to around 25 Mph.

Tonight 13 Jul Carquinez Strait and Delta

Clear. Lows 55 to 61. West Winds 10 to 15 Mph with Gusts to around 25 Mph.

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San Joaquin River - West Island Temperature Statistics

July Temperature

Concord, Buchanan Field (14.9 miles)

  • Lowest 5 July, 2025

    55.7 °F

  • Average July

    69.2 °F

  • Highest 10 July, 2025

    98.1 °F

Climate (2020–Present)

Concord, Buchanan Field (14.9 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.4 °F

  • Average High 2020–2025

    74.7 °F
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