Alta Loma Weather Forecast
- 55
- 78
Sunny
- 54
- 79
Mostly Sunny
- 55
- 77
Mostly Sunny
- 57
- 82
Mostly Sunny
- 56
- 82
Mostly Sunny
- 53
- 77
Mostly Sunny
Today 29 Apr San Bernardino and Riverside County Valleys-The Inland Empire
Mostly sunny. Highs 78 to 82. Light Winds becoming west 10 to 15 Mph with Gusts to 25 Mph this afternoon.
Tonight 29 Apr San Bernardino and Riverside County Valleys-The Inland Empire
Mostly clear. Lows 49 to 55. Areas of Winds west 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.
Alta Loma Temperature Statistics
April Temperature
Ontario International Airport (4.3 miles)
Lowest 6 April, 2024
41.6 °FAverage April
61 °FHighest 11 April, 2024
88.6 °F
Climate (2019–Present)
Ontario International Airport (4.3 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
55.7 °FAverage 2019–2024
66.3 °FAverage High 2019–2024
78.9 °F