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 4.6° 5.9°
Average change in low temperature day-to-day 7.0° 7.3°
Precipitation Last Month Last Year
Chance of dry day after a precip day 40% 56%
Chance of precip day after a dry day 12% 26%

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
Weather Underground   84.72%
The Weather Channel   84.44%
AccuWeather   83.61%
Foreca   81.94%
MeteoGroup   74.17%
Dark Sky (forecast.io)   72.50%
World Weather Online   69.72%
NWS Digital Forecast   67.50%
Persistence   52.78%
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

77.8% of MeteoGroup's high temperature forecasts for Philadelphia were within 3 degrees of actual temperatures last month.