San Joaquin River - Fern Island Weather Forecast

    • 46
    • 71

    Becoming Sunny

    • 43
    • 72

    Sunny

    • 48
    • 75

    Mostly Sunny

    • 46
    • 74

    Mostly Sunny

    • 47
    • 72

    Mostly Sunny

    • 47
    • 72

    Partly Sunny

Today 23 Oct San Joaquin County Delta

Mostly cloudy in the morning then clearing. Highs around 71. Northwest Winds up to 15 Mph.

Tonight 23 Oct San Joaquin County Delta

Clear. Lows 43 to 49. Northwest Winds up to 10 Mph with Gusts to around 25 Mph.

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San Joaquin River - Fern Island Temperature Statistics

October Temperature

Stockton, Stockton Metropolitan Airport (17.4 miles)

  • Lowest 13 October, 2026

    45.6 °F

  • Average October

    71.4 °F

  • Highest 4 October, 2026

    102.7 °F

Climate (2021–2026)

Stockton, Stockton Metropolitan Airport (17.4 miles)

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  • Average Low 2021–2026

    50.3 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    77.6 °F
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