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 5.5° 4.3°
Average change in low temperature day-to-day 5.8° 6.6°
Precipitation Last Month Last Year
Chance of dry day after a precip day 83% 64%
Chance of precip day after a dry day 21% 13%
 
 

Weather forecast accuracy for Ontario, Oregon

Last Month
AccuWeather   83.61%
NWS Digital Forecast   81.48%
The Weather Channel   80.83%
Weather Underground   80.75%
MeteoGroup   79.44%
Foreca   78.27%
Dark Sky (forecast.io)   74.17%
World Weather Online   59.88%
Persistence   50.56%
Last Year
Foreca   77.31%
The Weather Channel   77.06%
Weather Underground   77.00%
AccuWeather   75.91%
MeteoGroup   75.54%
Dark Sky (forecast.io)   70.70%
NWS Digital Forecast   70.68%
World Weather Online   68.41%
Persistence   53.96%
 

ForecastAdvisor Fact

On average, MeteoGroup's high temperature forecasts for Ontario were off by 2.36 degrees last year.