5-day weather forecast for Portland, Maine

Weather changeability for Portland, Maine

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

Weather forecast accuracy for Portland, Maine

Last Month
Weather Underground   75.00%
The Weather Channel   74.72%
AccuWeather   74.17%
Dark Sky (forecast.io)   70.69%
NWS Digital Forecast   69.94%
World Weather Online   69.54%
MeteoGroup   69.44%
Foreca   67.22%
Persistence   26.39%
Last Year
Weather Underground   74.90%
The Weather Channel   74.86%
AccuWeather   73.47%
MeteoGroup   71.90%
Foreca   71.03%
NWS Digital Forecast   66.30%
Dark Sky (forecast.io)   65.35%
World Weather Online   60.59%
Persistence   41.61%

ForecastAdvisor Fact

56.9% of NWS Digital Forecast's low temperature forecasts for Portland were within 3 degrees of actual temperatures last year.