San Joaquin River National Wildlife Refuge Weather Forecast

    • 49
    • 70

    Decreasing Clouds

    • 48
    • 68

    Mostly Sunny

    • 51
    • 73

    Sunny

    • 51
    • 77

    Mostly Sunny

    • 51
    • 76

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 54
    • 77

    Mostly Sunny

Today 26 Oct Northern San Joaquin Valley

Mostly cloudy. A slight chance of rain Showers in the afternoon. Highs 62 to 72. Light Winds becoming southeast around 10 Mph in the afternoon.

Tonight 26 Oct Northern San Joaquin Valley

Mostly clear. Lows 46 to 52. Northwest Winds up to 10 Mph.

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San Joaquin River National Wildlife Refuge Temperature Statistics

October Temperature

Modesto City-County Airport - Harry Sham Field (13 miles)

  • Lowest 17 October, 2025

    46.9 °F

  • Average October

    63.9 °F

  • Highest 7 October, 2025

    89.1 °F

Climate (2020–Present)

Modesto City-County Airport - Harry Sham Field (13 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    63.2 °F

  • Average High 2020–2025

    76 °F
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