Suisun Bay - McAvoy Boat Harbor Weather Forecast

    • 65
    • 88

    Sunny

    • 65
    • 89

    Sunny

    • 66
    • 89

    Mostly Sunny

    • 65
    • 79

    Chance Rain Showers

    • 64
    • 80

    Slight Chance Rain Showers

    • 63
    • 78

    Mostly Sunny

Today 15 Sep East Bay Interior Valleys

Sunny. Highs in the mid 90s. North Winds 5 to 10 Mph.

Tonight 15 Sep East Bay Interior Valleys

Clear. Lows in the mid 60s. West Winds up to 5 Mph in the evening. Becoming light.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Suisun Bay - McAvoy Boat Harbor Temperature Statistics

September Temperature

Concord, Buchanan Field (5.6 miles)

  • Lowest 4 September, 2025

    59 °F

  • Average September

    69.9 °F

  • Highest 1 September, 2025

    99 °F

Climate (2020–Present)

Concord, Buchanan Field (5.6 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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