Suisun Bay - McAvoy Boat Harbor Weather Forecast

    • 59
    • 76

    Sunny

    • 62
    • 86

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 57
    • 77

    Mostly Sunny

    • 57
    • 78

    Partly Sunny

    • 56
    • 73

    Mostly Sunny

    • 57
    • 79

    Mostly Sunny

Today 22 Sep East Bay Interior Valleys

Sunny. Highs in the lower 80s. West Winds 5 to 10 Mph.

Tonight 22 Sep East Bay Interior Valleys

Mostly clear. Lows in the mid 50s. Southwest Winds 5 to 10 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 7 September, 2026

    54.6 °F

  • Average September

    71.6 °F

  • Highest 9 September, 2026

    101.6 °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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