5-day weather forecast for Ontario, California
Click on a forecast to see the forecast trend for that day
Weather changeability for Ontario, California
Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.
Weather forecast accuracy for Ontario, California
|The Weather Channel||88.93%|
|NWS Digital Forecast||82.29%|
|Dark Sky (forecast.io)||78.31%|
|World Weather Online||73.02%|
0.5% of Weather Underground's high temperature forecasts for Ontario were off by more than 10 degrees last year.