Mount Vernon Weather Forecast

    • 60
    • 84

    Mostly Sunny

    • 60
    • 84

    Mostly Sunny

    • 59
    • 85

    Sunny

    • 57
    • 82

    Mostly Sunny

    • 56
    • 78

    Partly Sunny

    • 55
    • 76

    Partly Sunny

Today 9 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Highs 81 to 87. Areas of Winds east 10 to 15 Mph with Gusts to 25 Mph. Becoming to 10 Mph this afternoon.

Tonight 9 Nov San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 56 to 60. Areas of Winds east 10 Mph.

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Mount Vernon Temperature Statistics

November Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 2 November, 2026

    47.5 °F

  • Average November

    58.8 °F

  • Highest 5 November, 2026

    78.8 °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

    63.3 °F

  • Average High 2021–2026

    80.3 °F
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