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 6.6° 5.6°
Average change in low temperature day-to-day 8.4° 7.2°
Precipitation Last Month Last Year
Chance of dry day after a precip day 50% 55%
Chance of precip day after a dry day 71% 36%

Weather forecast accuracy for Williamsport, Pennsylvania

Last Month
The Weather Channel   82.76%
Dark Sky   79.80%
Weather Underground   78.69%
AccuWeather   77.52%
Foreca   77.46%
NWS Digital Forecast   69.03%
World Weather Online   60.41%
Persistence   38.69%
Last Year
The Weather Channel   78.59%
Foreca   77.00%
AccuWeather   76.01%
Weather Underground   75.13%
Dark Sky   75.03%
MeteoGroup   74.96%
NWS Digital Forecast   70.13%
World Weather Online   57.42%
Persistence   41.28%

ForecastAdvisor Fact

On average, Dark Sky's low temperature forecasts for Williamsport were off by 2.43 degrees last month.