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 3.7° 4.9°
Average change in low temperature day-to-day 4.6° 3.6°
Precipitation Last Month Last Year
Chance of dry day after a precip day 38% 28%
Chance of precip day after a dry day 29% 26%

Weather forecast accuracy for Portland, Oregon

Last Month
AccuWeather   82.47%
The Weather Channel   81.32%
Dark Sky (forecast.io)   81.03%
Weather Underground   80.75%
NWS Digital Forecast   78.73%
Foreca   74.71%
MeteoGroup   70.11%
World Weather Online   54.60%
Persistence   46.84%
Last Year
AccuWeather   83.70%
Weather Underground   83.43%
The Weather Channel   83.05%
Foreca   80.23%
MeteoGroup   80.06%
NWS Digital Forecast   78.56%
Dark Sky (forecast.io)   78.47%
World Weather Online   67.45%
Persistence   55.71%

ForecastAdvisor Fact

0.0% of Weather Underground's high temperature forecasts for Portland were off by more than 10 degrees last month.