Mentone Weather Forecast

    • 54
    • 79

    Mostly Sunny

    • 54
    • 75

    Partly Sunny

    • 53
    • 74

    Mostly Cloudy

    • 52
    • 75

    Mostly Sunny

    • 52
    • 70

    Rain Showers

    • 52
    • 63

    Rain Showers

Today 19 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny in the morning. Becoming partly cloudy. Highs 75 to 79. Light Winds becoming southwest to 10 Mph in the afternoon.

Tonight 19 Dec San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 45 to 48 in wind Sheltered Areas to 48 to 56 in warmer Locations. Light Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mentone Temperature Statistics

December Temperature

San Bernardino Intl. Airport (6.2 miles)

  • Lowest 4 December, 2025

    40.3 °F

  • Average December

    58.2 °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 °F

  • Average High 2020–2025

    80.3 °F
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