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 7.1° 5.9°
Average change in low temperature day-to-day 9.0° 7.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 75% 57%
Chance of precip day after a dry day 27% 32%

Weather forecast accuracy for Portland, Maine

Last Month
The Weather Channel   73.61%
Weather Underground   73.33%
AccuWeather   72.50%
MeteoGroup   72.22%
Foreca   70.28%
Dark Sky (forecast.io)   67.78%
NWS Digital Forecast   63.37%
Persistence   41.89%
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

ForecastWatch.com is the largest provider of weather forecast accuracy statistics.