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 7.3° 5.9°
Average change in low temperature day-to-day 3.9° 7.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 67% 57%
Chance of precip day after a dry day 50% 32%
 
 

Weather forecast accuracy for Portland, Maine

Last Month
The Weather Channel   70.99%
Weather Underground   69.44%
AccuWeather   67.90%
MeteoGroup   66.98%
Foreca   65.51%
Dark Sky (forecast.io)   62.96%
NWS Digital Forecast   61.42%
Persistence   37.15%
Last Year
Weather Underground   75.59%
The Weather Channel   75.57%
MeteoGroup   74.60%
Foreca   73.03%
AccuWeather   70.89%
WeatherBug   70.62%
NWS Digital Forecast   67.06%
CustomWeather   66.95%
Persistence   41.58%
 

ForecastAdvisor Fact

65.1% of NWS Digital Forecast's high temperature forecasts for Portland were within 3 degrees of actual temperatures last year.