Ontario, CA Air Quality

About Ontario weather

Ontario is in San Bernardino County, California, United States at 34.06°, -117.65°. Right now it’s 88° and mostly clear; today’s high is 91° with a 1% chance of rain.

California encompasses an extraordinary range of climates, from the Mediterranean coast to alpine peaks, scorching deserts, and temperate rainforests. The state's Central Valley is one of the most productive agricultural regions in the world, benefiting from warm, dry summers and mild, wet winters. Death Valley holds the record for the highest reliably recorded air temperature on Earth at 134 degrees Fahrenheit.