Weather forecast for: Williamsport PA
Last Update: 2:05 am EDT Sep 30, 2026
Overnight: Cloudy, with a low around 59. Calm wind.
Wednesday: Mostly cloudy, with a high near 77. Light and variable wind.
Wednesday Night: Mostly cloudy, with a low around 60. Calm wind.
Thursday: Isolated showers before noon. Partly sunny, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night: Partly cloudy, with a low around 61. Calm wind.
Friday: Showers likely after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Saturday: Mostly sunny, with a high near 70.
Saturday Night: A chance of showers after 2am. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
Sunday: A chance of showers. Mostly cloudy, with a high near 66. Chance of precipitation is 40%.
Sunday Night: Mostly cloudy, with a low around 47.
Monday: Mostly sunny, with a high near 67.
Monday Night: Mostly clear, with a low around 40.
Tuesday: Sunny, with a high near 62.
WeatherWorld.com
City of Williamsport, PA
