Suisun Slough - Joice Island Club Weather Forecast

    • 41
    • 48

    Dense Fog

    • 48
    • 57

    Decreasing Clouds

    • 56
    • 60

    Rain Showers Likely

    • 49
    • 62

    Chance Rain Showers

    • 52
    • 60

    Chance Rain Showers

    • 53
    • 59

    Rain Showers

    • 51
    • 57

    Rain Showers Likely

Today 14 Dec Carquinez Strait and Delta

Mostly cloudy. Areas of fog. Locally dense until late Afternoon, then patchy fog late in the afternoon. Highs around 46. Light Winds.

Tonight 14 Dec Carquinez Strait and Delta

Mostly cloudy. Patchy dense fog in the late evening and overnight. Lows around 40. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Suisun Slough - Joice Island Club Temperature Statistics

December Temperature

Concord, Buchanan Field (9.9 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 (9.9 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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