Sacramento River - Decker Island Weather Forecast

    • 44
    • 49

    Areas Fog

    • 44
    • 53

    Areas Fog

    • 44
    • 56

    Partly Sunny

    • 43
    • 54

    Patchy Fog

    • 44
    • 53

    Patchy Fog

    • 46
    • 54

    Patchy Fog

    • 50
    • 55

    Chance Rain

Today 9 Dec Carquinez Strait and Delta

Widespread fog early in the morning. Haze until late afternoon. Areas of fog late in the Morning, then patchy fog early in the afternoon. Mostly cloudy. Highs around 46. Light Winds. Gusts up to 20 Mph in the morning.

Tonight 9 Dec Carquinez Strait and Delta

Mostly cloudy. Haze and patchy fog through the night. Lows around 41. Light Winds.

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  • Temperature Real-Time

Sacramento River - Decker Island Temperature Statistics

December Temperature

Fairfield / Travis Air Force Base (16.8 miles)

  • Lowest 4 December, 2025

    35.2 °F

  • Average December

    45.2 °F

  • Highest 3 December, 2025

    64.8 °F

Climate (2020–Present)

Fairfield / Travis Air Force Base (16.8 miles)

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  • Average Low 2020–2025

    48.6 °F

  • Average 2020–2025

    60.4 °F

  • Average High 2020–2025

    75 °F
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