Ontario International Airport Weather Forecast
- 50
- 75
Partly Sunny
- 52
- 74
Mostly Sunny
- 51
- 74
Partly Sunny
- 51
- 72
Partly Sunny
- 48
- 65
Slight Chance Rain
- 45
- 62
Mostly Cloudy
Today 19 Mar San Bernardino and Riverside County Valleys-The Inland Empire
Partly cloudy. Highs 71 to 76. Areas of Winds east to 10 Mph. Becoming west 10 to 20 Mph with Gusts to 30 Mph in the afternoon.
Tonight 19 Mar San Bernardino and Riverside County Valleys-The Inland Empire
Partly cloudy in the evening. Becoming mostly clear. Lows 44 to 50. Areas of Winds south 10 to 15 Mph with Gusts to 25 Mph in the evening becoming light.
Ontario International Airport Temperature Statistics
March Temperature
Ontario International Airport (1.2 miles)
Lowest 8 March, 2024
43.6 °FAverage March
56.3 °FHighest 9 March, 2024
71.7 °F
Climate (2019–Present)
Ontario International Airport (1.2 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
55.9 °FAverage 2019–2024
66.4 °FAverage High 2019–2024
79 °F