Mount Vernon Weather Forecast

    • 40
    • 59

    Becoming Sunny

    • 47
    • 67

    Partly Sunny

    • 49
    • 71

    Partly Sunny

    • 51
    • 74

    Mostly Sunny

    • 48
    • 76

    Partly Sunny

    • 49
    • 68

    Chance Rain Showers

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

Partly cloudy this morning. Becoming mostly sunny. Highs around 60. Light Winds becoming west 10 Mph this afternoon.

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

Mostly clear in the evening. Becoming partly cloudy overnight with patchy fog. Lows 32 to 37 in wind Sheltered Areas to 34 to 42 in warmer Locations. Light Winds.

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Mount Vernon Temperature Statistics

January Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 19 January, 2025

    32 °F

  • Average January

    51.4 °F

  • Highest 2 January, 2025

    82.4 °F

Climate (2020–Present)

San Bernardino Intl. Airport (4.3 miles)

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  • Average Low 2020–2025

    54.3 °F

  • Average 2020–2025

    63.4 °F

  • Average High 2020–2025

    80.7 °F
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