Modesto Reservoir Weather Forecast

    • 57
    • 94

    Mostly Sunny

    • 54
    • 87

    Sunny

    • 57
    • 89

    Sunny

    • 59
    • 93

    Sunny

    • 59
    • 95

    Sunny

    • 61
    • 94

    Sunny

    • 64
    • 98

    Hot

Today 3 Jul Northern San Joaquin Valley

Mostly sunny. Highs 88 to 96. West Winds up to 10 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 3 Jul Northern San Joaquin Valley

Clear. Lows 54 to 62. West Winds up to 15 Mph with Gusts to around 30 Mph.

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Modesto Reservoir Temperature Statistics

July Temperature

Modesto City-County Airport - Harry Sham Field (16.2 miles)

  • Lowest 1 July, 2025

    66 °F

  • Average July

    82.3 °F

  • Highest 1 July, 2025

    99 °F

Climate (2020–Present)

Modesto City-County Airport - Harry Sham Field (16.2 miles)

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  • Average Low 2020–2025

    51.3 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    76.2 °F
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