Suisun Bay - McAvoy Boat Harbor Weather Forecast

    • 42
    • 46

    Mostly Cloudy

    • 50
    • 50

    Mostly Cloudy

    • 57
    • 58

    Rain Likely

    • 51
    • 61

    Slight Chance Rain

    • 54
    • 58

    Chance Rain

    • 54
    • 58

    Rain

    • 53
    • 56

    Rain Likely

Today 14 Dec East Bay Interior Valleys

Partly cloudy. Highs in the mid 40s to lower 50s. Northeast Winds around 5 Mph.

Tonight 14 Dec East Bay Interior Valleys

Mostly cloudy. Patchy fog. Lows around 40. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Suisun Bay - McAvoy Boat Harbor Temperature Statistics

December Temperature

Concord, Buchanan Field (5.6 miles)

  • Lowest 4 December, 2025

    37.9 °F

  • Average December

    45 °F

  • Highest 3 December, 2025

    64.9 °F

Climate (2020–Present)

Concord, Buchanan Field (5.6 miles)

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  • Average Low 2020–2025

    50.8 °F

  • Average 2020–2025

    61.2 °F

  • Average High 2020–2025

    74.2 °F
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