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 3.5° 4.3°
Average change in low temperature day-to-day 6.3° 6.0°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 63%
Chance of precip day after a dry day 8% 19%
 
 

Weather forecast accuracy for Ontario, Oregon

Last Month
MeteoGroup   75.83%
Weather Underground   75.28%
The Weather Channel   75.00%
AccuWeather   74.72%
NWS Digital Forecast   73.33%
Dark Sky (forecast.io)   72.22%
Foreca   72.13%
Persistence   59.77%
Last Year
The Weather Channel   73.93%
WeatherBug   73.38%
Weather Underground   73.16%
MeteoGroup   72.67%
AccuWeather   72.66%
Foreca   72.49%
NWS Digital Forecast   69.74%
CustomWeather   69.61%
Persistence   54.22%
 

ForecastAdvisor Fact

7.8% of Weather Underground's low temperature forecasts for Ontario were off by more than 10 degrees last month.