5-day weather forecast for Cheltenham, Pennsylvania

Weather changeability for Philadelphia, Pennsylvania

Temperature Last Month Last Year
Average change in high temperature day-to-day 8.2° 5.9°
Average change in low temperature day-to-day 7.5° 7.3°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 56%
Chance of precip day after a dry day 19% 26%
 
 

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
The Weather Channel   74.46%
Weather Underground   73.66%
AccuWeather   70.97%
Foreca   70.16%
MeteoGroup   68.28%
Dark Sky (forecast.io)   62.37%
NWS Digital Forecast   59.14%
World Weather Online   56.45%
Persistence   42.20%
Last Year
The Weather Channel   78.81%
Weather Underground   78.19%
AccuWeather   78.13%
Foreca   75.84%
MeteoGroup   75.24%
Dark Sky (forecast.io)   70.48%
NWS Digital Forecast   69.40%
World Weather Online   63.94%
Persistence   44.62%
 

ForecastAdvisor Fact

2.2% of Persistence's high temperature forecasts for Philadelphia were exactly right last month.