5-day weather forecast for Portland, Oregon

Weather changeability for Portland, Oregon

Temperature Last Month Last Year
Average change in high temperature day-to-day 6.0° 4.9°
Average change in low temperature day-to-day 4.0° 4.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 57% 27%
Chance of precip day after a dry day 17% 24%

Weather forecast accuracy for Portland, Oregon

Last Month
AccuWeather   80.75%
The Weather Channel   80.75%
Weather Underground   80.17%
Foreca   77.01%
NWS Digital Forecast   71.55%
Dark Sky (forecast.io)   71.26%
MeteoGroup   65.23%
World Weather Online   55.75%
Persistence   53.61%
Last Year
The Weather Channel   80.31%
AccuWeather   80.26%
Weather Underground   80.14%
Foreca   79.46%
Dark Sky (forecast.io)   76.43%
NWS Digital Forecast   75.76%
MeteoGroup   70.32%
World Weather Online   65.36%
Persistence   52.72%

ForecastAdvisor Fact

It rained or snowed 25% of the time in Portland last month when World Weather Online's text forecasts called for precipitation, and 22% of the time when they did not.