5-day weather forecast for Williamsport, Pennsylvania

Weather changeability for Williamsport, Pennsylvania

Temperature Last Month Last Year
Average change in high temperature day-to-day 5.0° 5.7°
Average change in low temperature day-to-day 6.5° 6.9°
Precipitation Last Month Last Year
Chance of dry day after a precip day 63% 52%
Chance of precip day after a dry day 25% 33%
 
 

Weather forecast accuracy for Williamsport, Pennsylvania

Last Month
Foreca   80.65%
The Weather Channel   79.76%
Weather Underground   79.46%
AccuWeather   78.87%
MeteoGroup   78.27%
Dark Sky (forecast.io)   76.19%
NWS Digital Forecast   75.89%
World Weather Online   58.78%
Persistence   52.08%
Last Year
The Weather Channel   73.26%
Weather Underground   72.82%
AccuWeather   72.58%
Foreca   71.77%
MeteoGroup   71.23%
Dark Sky (forecast.io)   67.60%
NWS Digital Forecast   66.09%
World Weather Online   58.43%
Persistence   44.10%
 

ForecastAdvisor Fact

On average, Weather Underground's high temperature forecasts for Williamsport were off by 2.56 degrees last month.