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 10.2° 6.2°
Average change in low temperature day-to-day 5.8° 6.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 47% 65%
Chance of precip day after a dry day 47% 32%

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
AccuWeather   78.33%
Weather Underground   76.94%
The Weather Channel   76.67%
Foreca   72.50%
NWS Digital Forecast   71.86%
Dark Sky (forecast.io)   71.39%
MeteoGroup   71.11%
World Weather Online   55.28%
Persistence   35.28%
Last Year
Weather Underground   79.87%
The Weather Channel   79.84%
Foreca   78.94%
MeteoGroup   78.73%
AccuWeather   78.68%
Dark Sky (forecast.io)   72.32%
NWS Digital Forecast   70.95%
World Weather Online   57.00%
Persistence   44.19%

ForecastAdvisor Fact

On average, Dark Sky (forecast.io)'s low temperature forecasts for Philadelphia were off by 3.51 degrees last year.