Caswell Memorial State Park Weather Forecast

    • 55
    • 89

    Sunny

    • 54
    • 87

    Sunny

    • 60
    • 90

    Sunny

    • 63
    • 97

    Mostly Sunny

    • 62
    • 95

    Mostly Sunny

    • 62
    • 97

    Hot

    • 62
    • 95

    Sunny

Today 3 Aug Northern San Joaquin Valley

Sunny. Highs 86 to 94. Northwest Winds up to 10 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 3 Aug Northern San Joaquin Valley

Clear. Lows 53 to 61. Northwest Winds up to 15 Mph with Gusts to around 25 Mph.

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Caswell Memorial State Park Temperature Statistics

August Temperature

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

  • Lowest 1 August, 2025

    64 °F

  • Average August

    77.8 °F

  • Highest 1 August, 2025

    93 °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

    63.3 °F

  • Average High 2020–2025

    76.1 °F
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