Tulloch Reservoir Weather Forecast

    • 45
    • 61

    Mostly Sunny

    • 49
    • 64

    Mostly Sunny

    • 54
    • 71

    Mostly Sunny

    • 55
    • 75

    Mostly Sunny

    • 51
    • 75

    Mostly Sunny

    • 50
    • 69

    Mostly Sunny

Today 15 Oct Northern San Joaquin Valley

Mostly cloudy in the morning then clearing. Highs 59 to 67. Southeast Winds up to 10 Mph shifting to the northwest in the afternoon.

Tonight 15 Oct Northern San Joaquin Valley

Clear. Lows 44 to 50. Light Winds.

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Tulloch Reservoir Temperature Statistics

October Temperature

Modesto City-County Airport - Harry Sham Field (27.3 miles)

  • Lowest 13 October, 2025

    51.1 °F

  • Average October

    66.3 °F

  • Highest 7 October, 2025

    89.1 °F

Climate (2020–Present)

Modesto City-County Airport - Harry Sham Field (27.3 miles)

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  • Average Low 2020–2025

    51.2 °F

  • Average 2020–2025

    63.3 °F

  • Average High 2020–2025

    76 °F
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