Modesto Weather Forecast

    • 61
    • 87

    Sunny

    • 60
    • 89

    Sunny

    • 66
    • 94

    Sunny

    • 71
    • 99

    Hot

    • 71
    • 101

    Hot

    • 68
    • 100

    Hot

Today 18 Aug Northern San Joaquin Valley

Sunny. Highs 81 to 89. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 18 Aug Northern San Joaquin Valley

Clear. Lows 54 to 62. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

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Modesto Temperature Statistics

August Temperature

Modesto City-County Airport - Harry Sham Field (2.5 miles)

  • Lowest 4 August, 2025

    59.6 °F

  • Average August

    79.7 °F

  • Highest 9 August, 2025

    102.7 °F

Climate (2020–Present)

Modesto City-County Airport - Harry Sham Field (2.5 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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