San Joaquin River - Fern Island Weather Forecast

    • 56
    • 58

    Rain

    • 55
    • 59

    Rain

    • 51
    • 57

    Rain

    • 49
    • 56

    Rain

    • 50
    • 54

    Rain

    • 46
    • 54

    Rain

    • 42
    • 52

    Chance Rain

Today 20 Dec Carquinez Strait and Delta

Cloudy. A chance of rain until late Afternoon, then rain likely late in the afternoon. Highs around 57. Southeast Winds around 10 Mph.

Tonight 20 Dec Carquinez Strait and Delta

A chance of rain early in the Evening, then rain in the late evening and overnight. Lows around 55. South Winds 10 to 15 Mph. Gusts up to 30 Mph after midnight.

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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

    44.1 °F

  • Highest 17 December, 2025

    66 °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 °F
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