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 5.4° 5.7°
Average change in low temperature day-to-day 6.0° 6.7°
Precipitation Last Month Last Year
Chance of dry day after a precip day 45% 54%
Chance of precip day after a dry day 29% 34%
 
 

Weather forecast accuracy for Philadelphia, Pennsylvania

Last Month
AccuWeather   78.27%
Foreca   76.49%
MeteoGroup   75.89%
National Weather Service   73.21%
The Weather Channel   72.32%
WeatherBug   71.73%
Weather Underground   70.24%
CustomWeather   69.64%
Dark Sky (forecast.io)   67.56%
Persistence   40.48%
Last Year
The Weather Channel   76.66%
WeatherBug   74.10%
Foreca   74.05%
MeteoGroup   73.88%
AccuWeather   72.47%
National Weather Service   71.89%
Weather Underground   71.76%
CustomWeather   70.66%
Persistence   42.54%
 

ForecastAdvisor Fact

2.1% of WeatherBug's low temperature forecasts for Philadelphia were off by more than 10 degrees last year.