Cajon Weather Forecast

    • 40
    • 59

    Chance Rain Showers

    • 41
    • 59

    Partly Sunny

    • 42
    • 60

    Mostly Sunny

    • 49
    • 67

    Sunny

    • 52
    • 72

    Mostly Sunny

    • 55
    • 78

    Mostly Sunny

    • 53
    • 79

    Sunny

Today 28 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy. Highs 57 to 61. Light Winds becoming west 10 to 15 Mph this afternoon.

Tonight 28 Jan San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy this evening. Becoming mostly cloudy. A slight chance of Showers. Lows 31 to 41. Areas of Winds south to 10 Mph. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

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Cajon Temperature Statistics

January Temperature

San Bernardino Intl. Airport (6.2 miles)

  • Lowest 19 January, 2025

    32 °F

  • Average January

    51.9 °F

  • Highest 2 January, 2025

    82.4 °F

Climate (2020–Present)

San Bernardino Intl. Airport (6.2 miles)

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  • Average Low 2020–2025

    54.3 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    80.7 °F
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