San Joaquin River - Three River Reach Weather Forecast

    • 56
    • 72

    Gradual Clearing

    • 59
    • 76

    Mostly Sunny

    • 61
    • 82

    Sunny

    • 61
    • 82

    Sunny

    • 61
    • 81

    Mostly Sunny

    • 61
    • 80

    Mostly Sunny

Today 27 Sep San Joaquin County Delta

Mostly cloudy in the morning then clearing. Highs around 77. Southwest Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 27 Sep San Joaquin County Delta

Mostly clear. Lows around 51. Southwest Winds up to 10 Mph with Gusts to around 20 Mph.

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  • 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

    72.8 °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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