Suisun Bay - Mallard Island Weather Forecast

    • 57
    • 84

    Sunny

    • 55
    • 79

    Mostly Sunny

    • 60
    • 79

    Sunny

    • 57
    • 85

    Sunny

    • 58
    • 89

    Sunny

    • 58
    • 90

    Sunny

Today 15 May East Bay Interior Valleys

Sunny. Highs in the 80s. West Winds 5 to 15 Mph.

Tonight 15 May East Bay Interior Valleys

Mostly clear. Lows in the 40s to upper 50s. Southwest Winds 5 to 15 Mph.

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Suisun Bay - Mallard Island Temperature Statistics

May Temperature

Concord, Buchanan Field (8.1 miles)

  • Lowest 11 May, 2026

    50.6 °F

  • Average May

    64.9 °F

  • Highest 11 May, 2026

    88.6 °F

Climate (2021–Present)

Concord, Buchanan Field (8.1 miles)

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  • Average Low 2021–2026

    51 °F

  • Average 2021–2026

    61.4 °F

  • Average High 2021–2026

    74.3 °F
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