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 9.8° 6.0°
Average change in low temperature day-to-day 9.4° 6.1°
Precipitation Last Month Last Year
Chance of dry day after a precip day 100% 61%
Chance of precip day after a dry day 17% 25%

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
MeteoGroup   82.69%
Weather Underground   77.60%
AccuWeather   77.56%
Foreca   77.24%
The Weather Channel   77.24%
Dark Sky (forecast.io)   71.79%
NWS Digital Forecast   69.23%
World Weather Online   60.90%
Persistence   47.44%
Last Year
The Weather Channel   80.08%
Weather Underground   80.05%
MeteoGroup   78.60%
Foreca   78.55%
AccuWeather   78.02%
Dark Sky (forecast.io)   73.76%
NWS Digital Forecast   73.59%
World Weather Online   63.77%
Persistence   47.33%

ForecastAdvisor Fact

On average, Weather Underground's high temperature forecasts for Philadelphia were off by 3.47 degrees last month.