Cimmeron Weather Forecast

    • 53
    • 64

    Rain Showers

    • 52
    • 62

    Rain Showers

    • 52
    • 63

    Chance Rain Showers

    • 52
    • 62

    Rain Showers Likely

    • 50
    • 61

    Rain Showers Likely

    • 49
    • 61

    Chance Rain Showers

Today 31 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Cloudy. A chance of Showers this Morning, then Showers this afternoon. Highs 63 to 67. Areas of Winds east 10 to 15 Mph with Gusts to 30 Mph.

Tonight 31 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Showers in the Evening, then Showers and a slight chance of Thunderstorms overnight. Locally heavy rainfall possible overnight. Lows 48 to 54. Areas of Winds east 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cimmeron Temperature Statistics

December Temperature

San Bernardino Intl. Airport (8.1 miles)

  • Lowest 28 December, 2025

    38.3 °F

  • Average December

    57.1 °F

  • Highest 10 December, 2025

    87.8 °F

Climate (2020–Present)

San Bernardino Intl. Airport (8.1 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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