5-day weather forecast for Harper, Oregon

Weather changeability for Ontario, Oregon

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.9° 4.2°
Average change in low temperature day-to-day 4.0° 6.3°
Precipitation Last Month Last Year
Chance of dry day after a precip day 75% 60%
Chance of precip day after a dry day 12% 11%
 
 

Weather forecast accuracy for Ontario, Oregon

Last Month
WeatherBug   83.89%
Weather Underground   81.67%
The Weather Channel   81.39%
National Weather Service   81.39%
Foreca   80.83%
MeteoGroup   80.28%
CustomWeather   77.78%
AccuWeather   76.94%
Persistence   64.72%
Dark Sky (forecast.io)   64.17%
Last Year
MeteoGroup   76.04%
The Weather Channel   75.02%
Foreca   73.90%
WeatherBug   73.18%
AccuWeather   72.14%
National Weather Service   70.51%
Weather Underground   70.25%
CustomWeather   69.69%
Persistence   57.33%
 

ForecastAdvisor Fact

On average, The Weather Channel's high temperature forecasts for Ontario were off by 2.94 degrees last year.