Grayson Weather Forecast

    • 58
    • 90

    Sunny

    • 56
    • 89

    Sunny

    • 61
    • 93

    Sunny

    • 52
    • 89

    Mostly Sunny

    • 52
    • 84

    Mostly Sunny

    • 54
    • 85

    Sunny

    • 55
    • 89

    Sunny

Today 19 May Northern San Joaquin Valley

Sunny, warmer. Highs 83 to 92. Northwest Winds 10 to 20 Mph with Gusts to around 30 Mph.

Tonight 19 May Northern San Joaquin Valley

Clear. Lows 51 to 59. Northwest Winds 10 to 15 Mph with Gusts to around 30 Mph.

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Grayson Temperature Statistics

May Temperature

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

  • Lowest 4 May, 2025

    50.6 °F

  • Average May

    69.2 °F

  • Highest 10 May, 2025

    95.6 °F

Climate (2020–Present)

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

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  • Average Low 2020–2025

    51.3 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    76.1 °F
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