Mount Vernon Weather Forecast

    • 57
    • 81

    Chance Rain Showers

    • 55
    • 70

    Rain Showers Likely

    • 52
    • 66

    Partly Sunny

    • 53
    • 70

    Partly Sunny

    • 51
    • 68

    Rain Showers Likely

    • 48
    • 63

    Partly Sunny

Today 12 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 77 to 83. Light Winds becoming southwest 10 Mph this afternoon.

Tonight 12 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers overnight. Lows 51 to 54 in wind Sheltered Areas to 52 to 58 in warmer Locations. Light Winds. Chance of measurable precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

November Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 2 November, 2026

    47.5 °F

  • Average November

    61.3 °F

  • Highest 8 November, 2026

    84.2 °F

Climate (2021–2026)

San Bernardino Intl. Airport (4.3 miles)

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  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.4 °F

  • Average High 2021–2026

    80.3 °F
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