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 6.9° 6.9°
Average change in low temperature day-to-day 5.6° 7.4°
Precipitation Last Month Last Year
Chance of dry day after a precip day 70% 64%
Chance of precip day after a dry day 41% 31%

Weather forecast accuracy for Portland, Maine

Last Month
The Weather Channel   77.56%
MeteoGroup   77.24%
AccuWeather   76.92%
Weather Underground   76.60%
Foreca   73.08%
Dark Sky (forecast.io)   67.95%
NWS Digital Forecast   67.31%
World Weather Online   60.26%
Persistence   43.90%
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

9.0% of Dark Sky (forecast.io)'s low temperature forecasts for Portland were exactly right last month.