Suisun Bay - McAvoy Boat Harbor Weather Forecast

    • 72
    • 89

    Increasing Clouds

    • 74
    • 96

    Mostly Sunny

    • 64
    • 89

    Mostly Sunny

    • 61
    • 81

    Breezy

    • 59
    • 78

    Sunny

    • 60
    • 81

    Sunny

    • 59
    • 80

    Mostly Sunny

Today 8 Sep East Bay Interior Valleys

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

Tonight 8 Sep East Bay Interior Valleys

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 60s. Northwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Suisun Bay - McAvoy Boat Harbor Temperature Statistics

September Temperature

Concord, Buchanan Field (5.6 miles)

  • Lowest 5 September, 2026

    56.6 °F

  • Average September

    68.1 °F

  • Highest 5 September, 2026

    82.7 °F

Climate (2021–2026)

Concord, Buchanan Field (5.6 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    61.6 °F

  • Average High 2021–2026

    74.2 °F
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