5-day weather forecast for Ontario, California

Weather changeability for Ontario, California

Temperature Last Month Last Year
Average change in high temperature day-to-day 5.8° 4.5°
Average change in low temperature day-to-day 4.1° 3.8°
Precipitation Last Month Last Year
Chance of dry day after a precip day 0% 55%
Chance of precip day after a dry day 0% 7%

Weather forecast accuracy for Ontario, California

Last Month
AccuWeather   87.93%
The Weather Channel   87.36%
Weather Underground   87.36%
MeteoGroup   85.63%
Foreca   83.33%
NWS Digital Forecast   81.03%
Dark Sky (forecast.io)   79.89%
World Weather Online   69.25%
Persistence   66.05%
Last Year
MeteoGroup   85.19%
The Weather Channel   85.06%
Weather Underground   84.92%
AccuWeather   84.73%
Foreca   83.97%
NWS Digital Forecast   78.03%
Dark Sky (forecast.io)   77.29%
World Weather Online   73.11%
Persistence   64.18%

ForecastAdvisor Fact

18.4% of The Weather Channel's high temperature forecasts for Ontario were exactly right last month.