Mount Vernon Weather Forecast

    • 65
    • 94

    Sunny

    • 62
    • 91

    Mostly Sunny

    • 59
    • 86

    Mostly Sunny

    • 57
    • 84

    Sunny

    • 57
    • 83

    Mostly Sunny

    • 58
    • 84

    Mostly Sunny

Today 16 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Mostly sunny. Hazy this afternoon. Highs 88 to 96. Areas of Winds west to 10 Mph. Becoming 10 to 15 Mph with Gusts to 25 Mph this afternoon.

Tonight 16 Jun San Bernardino and Riverside County Valleys-The Inland Empire

Mostly clear. Lows 58 to 63. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Vernon Temperature Statistics

June Temperature

San Bernardino Intl. Airport (4.3 miles)

  • Lowest 3 June, 2026

    56.5 °F

  • Average June

    70.9 °F

  • Highest 12 June, 2026

    100.4 °F

Climate (2021–Present)

San Bernardino Intl. Airport (4.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    54.3 °F

  • Average 2021–2026

    63.3 °F

  • Average High 2021–2026

    80.5 °F
Get WillyWeather+ to remove ads