Today 18 May San Bernardino and Riverside County Valleys-The Inland Empire
Partly cloudy in the morning. Becoming mostly sunny. Warmer. Highs 77 to 82. Light Winds becoming west 15 Mph in the afternoon.
Tonight 18 May San Bernardino and Riverside County Valleys-The Inland Empire
Mostly clear in the evening. Becoming partly cloudy. Lows 50 to 55. Light Winds.
Ontario Temperature Statistics
Ontario International Airport (3.7 miles)
Lowest 3 May, 202155 °F
Average May65.7 °F
Highest 4 May, 202190 °F
Ontario International Airport (3.7 miles)Take a look at our website widgetsAvailable free! Find Out More
Average Low 2010–Present55.9 °F
Average 2010–Present66.1 °F
Average High 2010–Present79 °F