Suisun Bay - Ryer Island (East Side) Weather Forecast

    • 64
    • 78

    Mostly Cloudy

    • 62
    • 75

    Chance Rain Showers

    • 62
    • 78

    Mostly Sunny

    • 63
    • 81

    Sunny

    • 65
    • 86

    Mostly Sunny

    • 64
    • 75

    Chance Rain Showers

Today 18 Sep Carquinez Strait and Delta

Mostly cloudy. Highs 82 to 88. Southwest Winds 10 to 15 Mph.

Tonight 18 Sep Carquinez Strait and Delta

Mostly cloudy with a slight chance of rain Showers. Lows 61 to 67. Southwest Winds up to 10 Mph with Gusts to around 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Suisun Bay - Ryer Island (East Side) Temperature Statistics

September Temperature

Concord, Buchanan Field (6.2 miles)

  • Lowest 4 September, 2025

    59 °F

  • Average September

    70.3 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Concord, Buchanan Field (6.2 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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