5-day weather forecast for Portland, Maine

Weather changeability for Portland, Maine

Temperature Last Month Last Year
Average change in high temperature day-to-day 4.3° 6.2°
Average change in low temperature day-to-day 11.1° 6.8°
Precipitation Last Month Last Year
Chance of dry day after a precip day 45% 51%
Chance of precip day after a dry day 29% 28%
 
 

Weather forecast accuracy for Portland, Maine

Last Month
Foreca   72.02%
MeteoGroup   71.43%
The Weather Channel   69.64%
Weather Underground   69.35%
National Weather Service   68.21%
Dark Sky (forecast.io)   67.59%
WeatherBug   67.56%
CustomWeather   67.26%
AccuWeather   64.58%
Persistence   37.50%
Last Year
The Weather Channel   74.78%
MeteoGroup   73.62%
Foreca   72.49%
National Weather Service   70.81%
AccuWeather   70.18%
Weather Underground   69.70%
CustomWeather   67.65%
WeatherBug   67.34%
Persistence   43.90%
 

ForecastAdvisor Fact

10.2% of The Weather Channel's low temperature forecasts for Portland were exactly right last year.