Mount Vernon Weather Forecast

    • 59
    • 81

    Mostly Sunny

    • 61
    • 86

    Becoming Sunny

    • 61
    • 88

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

    • 63
    • 91

    Mostly Sunny

    • 63
    • 92

    Mostly Sunny

    • 64
    • 94

    Mostly Sunny

Today 1 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Mostly cloudy with patchy fog this morning. Becoming sunny. Highs 77 to 84. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 1 Jul San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear this evening. Becoming partly cloudy. Patchy fog overnight. Lows 52 to 60. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph this evening becoming light.

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Mount Vernon Temperature Statistics

July Temperature

San Bernardino Intl. Airport (4.3 miles)

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Climate (2021–2026)

San Bernardino Intl. Airport (4.3 miles)

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  • Average Low 2021–2026

    54.2 °F

  • Average 2021–2026

    63.2 °F

  • Average High 2021–2026

    80.4 °F
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