San Joaquin River - Threemile Slough Entrance Weather Forecast

    • 42
    • 46

    Dense Fog

    • 43
    • 46

    Mostly Cloudy

    • 49
    • 54

    Mostly Cloudy

    • 56
    • 58

    Rain Showers Likely

    • 49
    • 60

    Slight Chance Rain Showers

    • 52
    • 55

    Chance Rain Showers

Today 13 Dec Carquinez Strait and Delta

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

Tonight 13 Dec Carquinez Strait and Delta

Mostly cloudy. Patchy fog in the Evening, then Areas of fog. Locally dense after midnight. Lows around 40. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin River - Threemile Slough Entrance Temperature Statistics

December Temperature

Fairfield / Travis Air Force Base (18.6 miles)

  • Lowest 4 December, 2025

    35.2 °F

  • Average December

    44.9 °F

  • Highest 3 December, 2025

    64.8 °F

Climate (2020–Present)

Fairfield / Travis Air Force Base (18.6 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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