San Joaquin River - Three River Reach Weather Forecast

    • 61
    • 78

    Sunny

    • 61
    • 81

    Mostly Sunny

    • 60
    • 76

    Partly Sunny

    • 60
    • 78

    Mostly Sunny

    • 62
    • 79

    Sunny

    • 62
    • 82

    Mostly Sunny

Today 18 Sep San Joaquin County Delta

Sunny. Highs around 85. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 18 Sep San Joaquin County Delta

Clear. Lows around 57. West Winds up to 10 Mph with Gusts to around 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

San Joaquin River - Three River Reach Temperature Statistics

September Temperature

Stockton, Stockton Metropolitan Airport (19.3 miles)

  • Lowest 1 September, 2026

    52.6 °F

  • Average September

    74 °F

  • Highest 10 September, 2026

    106.6 °F

Climate (2021–2026)

Stockton, Stockton Metropolitan Airport (19.3 miles)

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  • Average Low 2021–2026

    50.2 °F

  • Average 2021–2026

    63.1 °F

  • Average High 2021–2026

    77.4 °F
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