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 4.8° 4.6°
Average change in low temperature day-to-day 3.3° 4.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 20% 26%
Chance of precip day after a dry day 44% 23%

Weather forecast accuracy for Portland, Oregon

Last Month
Foreca   76.00%
The Weather Channel   75.00%
Weather Underground   74.31%
MeteoGroup   74.00%
AccuWeather   72.33%
NWS Digital Forecast   64.11%
World Weather Online   63.67%
Dark Sky (forecast.io)   62.00%
Persistence   53.42%
Last Year
The Weather Channel   80.52%
Weather Underground   80.43%
AccuWeather   80.06%
Foreca   79.07%
MeteoGroup   75.56%
NWS Digital Forecast   74.88%
Dark Sky (forecast.io)   73.99%
World Weather Online   65.36%
Persistence   54.88%

ForecastAdvisor Fact

On average, The Weather Channel's high temperature forecasts for Portland were off by 3.24 degrees last month.