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 4.7° 6.5°
Average change in low temperature day-to-day 8.3° 7.2°
Precipitation Last Month Last Year
Chance of dry day after a precip day 80% 69%
Chance of precip day after a dry day 22% 33%

Weather forecast accuracy for Portland, Maine

Last Month
The Weather Channel   81.61%
Weather Underground   81.61%
AccuWeather   79.89%
MeteoGroup   76.44%
Foreca   75.57%
World Weather Online   69.83%
Dark Sky (forecast.io)   69.83%
NWS Digital Forecast   64.66%
Persistence   44.05%
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

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