Suisun Bay - Hastings Slough Entrance Weather Forecast

    • 42
    • 51

    Increasing Clouds

    • 39
    • 50

    Mostly Sunny

    • 39
    • 50

    Mostly Sunny

    • 40
    • 49

    Partly Sunny

    • 43
    • 49

    Mostly Cloudy

    • 46
    • 48

    Chance Rain Showers

Today 27 Dec East Bay Interior Valleys

Partly cloudy. Highs in the lower 50s. West Winds around 5 Mph. Becoming north in the afternoon.

Tonight 27 Dec East Bay Interior Valleys

Mostly clear in the evening then becoming mostly cloudy. Lows in the upper 30s. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Suisun Bay - Hastings Slough Entrance Temperature Statistics

December Temperature

Concord, Buchanan Field (3.7 miles)

  • Lowest 4 December, 2025

    37.9 °F

  • Average December

    49 °F

  • Highest 17 December, 2025

    66 °F

Climate (2020–Present)

Concord, Buchanan Field (3.7 miles)

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  • Average Low 2020–2025

    50.9 °F

  • Average 2020–2025

    61.3 °F

  • Average High 2020–2025

    74.3 °F
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