Suisun Bay - Snag Island Weather Forecast

    • 58
    • 70

    Increasing Clouds

    • 58
    • 67

    Mostly Cloudy

    • 58
    • 68

    Partly Sunny

    • 58
    • 69

    Mostly Sunny

    • 57
    • 68

    Mostly Sunny

    • 57
    • 68

    Mostly Sunny

    • 58
    • 73

    Mostly Sunny

Today 21 Jul Carquinez Strait and Delta

Sunny. Highs 74 to 80. Southwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

Tonight 21 Jul Carquinez Strait and Delta

Mostly clear. Near the Bay, mostly clear in the evening then becoming mostly cloudy. Lows around 57. Southwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

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Suisun Bay - Snag Island Temperature Statistics

July Temperature

Concord, Buchanan Field (6.8 miles)

  • Lowest 5 July, 2025

    55.7 °F

  • Average July

    69.2 °F

  • Highest 10 July, 2025

    99.6 °F

Climate (2020–Present)

Concord, Buchanan Field (6.8 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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