Cajon Weather Forecast

    • 54
    • 71

    Mostly Cloudy

    • 52
    • 66

    Rain Showers

    • 51
    • 64

    Rain Showers

    • 52
    • 64

    Chance Rain Showers

    • 49
    • 65

    Chance Rain Showers

    • 47
    • 64

    Chance Rain Showers

Today 30 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Sunny. Highs 68 to 72. Areas of Winds east 15 to 25 Mph. Gusts to 45 Mph. Becoming 35 Mph in the afternoon.

Tonight 30 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 50 to 54. Areas of Winds east 10 to 20 Mph with Gusts to 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cajon Temperature Statistics

December Temperature

San Bernardino Intl. Airport (6.2 miles)

  • Lowest 28 December, 2025

    38.3 °F

  • Average December

    57.4 °F

  • Highest 10 December, 2025

    87.8 °F

Climate (2020–Present)

San Bernardino Intl. Airport (6.2 miles)

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  • Average Low 2020–2025

    54.1 °F

  • Average 2020–2025

    63.1 °F

  • Average High 2020–2025

    80.3 °F
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