San Joaquin River - Fern Island Weather Forecast

    • 41
    • 46

    Mostly Cloudy

    • 41
    • 46

    Mostly Cloudy

    • 41
    • 46

    Mostly Cloudy

    • 41
    • 45

    Mostly Cloudy

    • 42
    • 45

    Mostly Cloudy

    • 43
    • 56

    Mostly Cloudy

    • 47
    • 55

    Chance Rain Showers

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 Forecast NOAA

  • Temperature Real-Time

San Joaquin River - Fern Island Temperature Statistics

December Temperature

Stockton, Stockton Metropolitan Airport (17.4 miles)

  • Lowest 5 December, 2025

    35.1 °F

  • Average December

    44.2 °F

  • Highest 3 December, 2025

    57.9 °F

Climate (2020–Present)

Stockton, Stockton Metropolitan Airport (17.4 miles)

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  • Average Low 2020–2025

    50.1 °F

  • Average 2020–2025

    62.8 °F

  • Average High 2020–2025

    77.1 °F
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