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 5.1° 5.7°
Average change in low temperature day-to-day 3.3° 5.8°
Precipitation Last Month Last Year
Chance of dry day after a precip day 100% 56%
Chance of precip day after a dry day 30% 26%
 
 

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
The Weather Channel   90.23%
Intellicast   88.79%
AccuWeather   85.06%
Weather Underground   82.47%
National Weather Service   79.31%
CustomWeather   78.16%
NWS Digital Forecast   76.72%
World Weather Online   73.28%
Persistence   49.43%
Last Year
The Weather Channel   77.97%
Intellicast   76.97%
AccuWeather   75.69%
National Weather Service   73.86%
CustomWeather   71.65%
NWS Digital Forecast   71.37%
Persistence   45.52%
 

ForecastAdvisor Fact

2.2% of National Weather Service's high temperature forecasts for Philadelphia were off by more than 10 degrees last year.