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 4.2° 4.8°
Average change in low temperature day-to-day 10.8° 7.1°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 59%
Chance of precip day after a dry day 39% 16%

Weather forecast accuracy for Hermiston, Oregon

Last Month
AccuWeather   61.94%
Foreca   58.61%
The Weather Channel   56.39%
Weather Underground   56.39%
NWS Digital Forecast   54.46%
MeteoGroup   49.17%
World Weather Online   49.17%
Dark Sky (forecast.io)   46.67%
Persistence   42.16%
Last Year
Foreca   75.30%
AccuWeather   75.27%
The Weather Channel   72.94%
Weather Underground   72.75%
MeteoGroup   72.67%
Dark Sky (forecast.io)   68.15%
NWS Digital Forecast   67.11%
World Weather Online   64.10%
Persistence   50.86%

ForecastAdvisor Fact

4.9% of Persistence's low temperature forecasts for Hermiston were exactly right last month.