San Joaquin River - Fern Island Weather Forecast

    • 58
    • 91

    Mostly Sunny

    • 57
    • 90

    Sunny

    • 58
    • 91

    Sunny

    • 59
    • 92

    Sunny

    • 59
    • 94

    Sunny

    • 60
    • 95

    Sunny

Today 25 Jul San Joaquin County Delta

Sunny. Highs 86 to 92. West Winds 10 to 15 Mph.

Tonight 25 Jul San Joaquin County Delta

Clear. Lows around 59. Southwest Winds 10 to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Real-Time

San Joaquin River - Fern Island Temperature Statistics

July Temperature

Stockton, Stockton Metropolitan Airport (17.4 miles)

  • Lowest 7 July, 2026

    53.7 °F

  • Average July

    78 °F

  • Highest 14 July, 2026

    105.7 °F

Climate (2021–2026)

Stockton, Stockton Metropolitan Airport (17.4 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    77.3 °F
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