Sunday
Mostly cloudy
High:
38°F
Mostly cloudy, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.
Williamsport, PA Weather - Tomorrow’s Forecast
Sunday Night
Mostly cloudy
Overnight low:
19°F
Mostly cloudy, with a low around 19. Light and variable wind becoming northwest 5 to 9 mph in the evening.