Antioch City Marina Entrance Weather Forecast

    • 69
    • 90

    Increasing Clouds

    • 68
    • 81

    Chance Rain Showers

    • 66
    • 77

    Chance Rain Showers

    • 65
    • 81

    Sunny

    • 66
    • 85

    Sunny

    • 68
    • 89

    Chance Rain Showers

    • 66
    • 78

    Slight Chance Rain Showers

Today 17 Sep East Bay Interior Valleys

Sunny. Highs in the mid 90s. Northwest Winds 5 to 15 Mph.

Tonight 17 Sep East Bay Interior Valleys

Partly cloudy. Lows in the mid 60s. Southwest Winds 5 to 10 Mph.

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Antioch City Marina Entrance Temperature Statistics

September Temperature

Concord, Buchanan Field (12.4 miles)

  • Lowest 4 September, 2025

    59 °F

  • Average September

    70.3 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Concord, Buchanan Field (12.4 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.4 °F

  • Average High 2020–2025

    74.6 °F
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