Mount Vernon Weather Forecast
- 60
- 88
Sunny
- 60
- 89
Sunny
- 60
- 90
Partly Sunny
- 59
- 86
Mostly Cloudy
- 57
- 80
Partly Sunny
- 56
- 79
Chance Rain Showers
Today 8 Nov San Bernardino and Riverside County Valleys-The Inland Empire
Mostly sunny. Highs 83 to 88. Areas of Winds north to 10 Mph becoming west with Gusts to 25 Mph in the afternoon.
Tonight 8 Nov San Bernardino and Riverside County Valleys-The Inland Empire
Clear. Lows 53 to 57 in wind Sheltered Areas to 56 to 61 in warmer Locations. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph becoming north with Gusts to 30 Mph overnight.
Mount Vernon Temperature Statistics
November Temperature
San Bernardino Intl. Airport (4.3 miles)
Lowest 4 November, 2025
48.2 °FAverage November
62.4 °FHighest 1 November, 2025
89.6 °F
Climate (2020–Present)
San Bernardino Intl. Airport (4.3 miles)
Average Low 2020–2025
54 °FAverage 2020–2025
63 °FAverage High 2020–2025
80.2 °F