Thornton Weather Forecast

    • 36
    • 58

    Increasing Clouds

    • 34
    • 57

    Becoming Sunny

    • 34
    • 55

    Partly Sunny

    • 34
    • 58

    Mostly Sunny

    • 33
    • 57

    Mostly Sunny

    • 35
    • 58

    Mostly Sunny

    • 35
    • 61

    Mostly Sunny

Today 17 Jan Northern San Joaquin Valley

Areas of frost in the morning. Sunny. Highs 56 to 62. Light Winds.

Tonight 17 Jan Northern San Joaquin Valley

Mostly clear. Patchy fog after midnight. Lows 35 to 41. Light Winds.

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  • Temperature Real-Time

Thornton Temperature Statistics

January Temperature

Sacramento Executive Airport (19.3 miles)

  • Lowest 14 January, 2025

    33.1 °F

  • Average January

    49.6 °F

  • Highest 9 January, 2025

    69.7 °F

Climate (2020–Present)

Sacramento Executive Airport (19.3 miles)

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  • Average Low 2020–2025

    50.1 °F

  • Average 2020–2025

    61.7 °F

  • Average High 2020–2025

    75.9 °F
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