5-day weather forecast for Montoursville, Pennsylvania

Weather changeability for Williamsport, Pennsylvania

Unfortunately, there was not enough data for this station to provide meaningful weather changeability data.

Weather forecast accuracy for Williamsport, Pennsylvania

Last Month
The Weather Channel   76.79%
Weather Underground   76.19%
MeteoGroup   76.19%
AccuWeather   70.24%
NWS Digital Forecast   69.28%
Dark Sky (forecast.io)   66.96%
Foreca   65.77%
Last Year
Weather Underground   75.44%
The Weather Channel   74.01%
MeteoGroup   73.95%
AccuWeather   72.30%
Foreca   70.74%
WeatherBug   69.29%
NWS Digital Forecast   68.44%
CustomWeather   67.46%
Persistence   40.09%

ForecastAdvisor Fact

1.5% of The Weather Channel's high temperature forecasts for Williamsport were off by more than 10 degrees last year.