Thornton Weather Forecast

    • 54
    • 86

    Sunny

    • 54
    • 82

    Mostly Sunny

    • 55
    • 90

    Sunny

    • 55
    • 90

    Sunny

    • 55
    • 88

    Sunny

    • 55
    • 90

    Mostly Sunny

Today 12 Sep Central San Joaquin County Including Stockton Metro

Sunny. Highs around 88. West Winds up to 15 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 12 Sep Central San Joaquin County Including Stockton Metro

Clear. Lows 53 to 58. West Winds up to 15 Mph with Gusts to around 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thornton Temperature Statistics

September Temperature

Sacramento Executive Airport (19.3 miles)

  • Lowest 5 September, 2026

    52.6 °F

  • Average September

    72.6 °F

  • Highest 10 September, 2026

    102.9 °F

Climate (2021–2026)

Sacramento Executive Airport (19.3 miles)

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  • Average Low 2021–2026

    50.4 °F

  • Average 2021–2026

    61.9 °F

  • Average High 2021–2026

    75.6 °F
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