5-day weather forecast for Philadelphia, Pennsylvania

Weather changeability for Philadelphia, Pennsylvania

Temperature Last Month Last Year
Average change in high temperature day-to-day 4.7° 6.3°
Average change in low temperature day-to-day 8.8° 7.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 64%
Chance of precip day after a dry day 33% 31%
 
 

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
Dark Sky (forecast.io)   83.89%
The Weather Channel   82.50%
Foreca   82.50%
MeteoGroup   81.94%
AccuWeather   81.67%
Weather Underground   81.39%
NWS Digital Forecast   73.89%
World Weather Online   63.33%
Persistence   41.67%
Last Year
The Weather Channel   76.46%
Weather Underground   76.29%
Foreca   75.51%
AccuWeather   74.77%
MeteoGroup   74.74%
Dark Sky (forecast.io)   69.70%
NWS Digital Forecast   66.13%
World Weather Online   56.25%
Persistence   43.81%
 

ForecastAdvisor Fact

0.9% of Weather Underground's low temperature forecasts for Philadelphia were off by more than 10 degrees last year.