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° 6.9°
Average change in low temperature day-to-day 4.3° 7.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 56% 64%
Chance of precip day after a dry day 23% 31%

Weather forecast accuracy for Portland, Maine

Last Month
The Weather Channel   80.91%
Weather Underground   80.65%
Foreca   80.38%
AccuWeather   79.84%
MeteoGroup   75.27%
NWS Digital Forecast   74.19%
World Weather Online   66.40%
Dark Sky (forecast.io)   65.59%
Persistence   49.19%
Last Year
The Weather Channel   74.62%
Weather Underground   74.62%
MeteoGroup   73.24%
AccuWeather   72.98%
Foreca   72.40%
NWS Digital Forecast   67.40%
Dark Sky (forecast.io)   67.17%
World Weather Online   61.60%
Persistence   41.87%

ForecastAdvisor Fact

12.9% of Foreca's low temperature forecasts for Portland were exactly right last month.