5-day weather forecast for Umatilla, Oregon

Weather changeability for Hermiston, Oregon

Temperature Last Month Last Year
Average change in high temperature day-to-day 4.5° 4.6°
Average change in low temperature day-to-day 9.6° 6.3°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 61%
Chance of precip day after a dry day 8% 15%

Weather forecast accuracy for Hermiston, Oregon

Last Month
MeteoGroup   81.61%
AccuWeather   80.75%
Weather Underground   78.74%
The Weather Channel   78.16%
NWS Digital Forecast   76.15%
Foreca   76.15%
World Weather Online   69.83%
Dark Sky (forecast.io)   68.68%
Persistence   57.44%
Last Year
MeteoGroup   75.03%
AccuWeather   75.00%
Foreca   72.86%
The Weather Channel   72.67%
Weather Underground   72.39%
NWS Digital Forecast   67.05%
Dark Sky (forecast.io)   66.82%
World Weather Online   65.05%
Persistence   53.69%

ForecastAdvisor Fact

39.3% of Persistence's low temperature forecasts for Hermiston were off by more than 10 degrees last month.