Thornton Weather Forecast

    • 55
    • 83

    Mostly Sunny

    • 54
    • 86

    Becoming Sunny

    • 53
    • 89

    Sunny

    • 54
    • 90

    Mostly Sunny

    • 56
    • 92

    Sunny

    • 55
    • 86

    Mostly Sunny

    • 54
    • 83

    Mostly Sunny

Today 16 Jul Northern San Joaquin Valley

Sunny. Highs 84 to 92. Northwest Winds up to 10 Mph with Gusts to around 20 Mph.

Tonight 16 Jul Northern San Joaquin Valley

Clear. Lows 54 to 62. Northwest Winds up to 15 Mph.

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Thornton Temperature Statistics

July Temperature

Sacramento Executive Airport (19.3 miles)

  • Lowest 5 July, 2025

    54.6 °F

  • Average July

    73.8 °F

  • Highest 11 July, 2025

    102.7 °F

Climate (2020–Present)

Sacramento Executive Airport (19.3 miles)

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  • Average Low 2020–2025

    50 °F

  • Average 2020–2025

    61.6 °F

  • Average High 2020–2025

    75.9 °F
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