5-day weather forecast for Portland, Oregon

Weather changeability for Portland, Oregon

Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.

Weather forecast accuracy for Portland, Oregon

Last Month
The Weather Channel   71.45%
Intellicast   71.45%
CustomWeather   71.10%
National Weather Service   70.77%
NWS Digital Forecast   69.40%
AccuWeather   67.44%
World Weather Online   65.00%
Weather Underground   63.17%
Persistence   49.36%
Last Year
National Weather Service   74.18%
NWS Digital Forecast   73.59%
The Weather Channel   72.78%
CustomWeather   71.94%
Intellicast   71.48%
AccuWeather   68.96%
Persistence   52.95%
 

ForecastAdvisor Fact

1.4% of National Weather Service's low temperature forecasts for Portland were off by more than 10 degrees last year.