This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 41.2412°N, -77.0011°.
The 10-day span for Williamsport runs from a high near 80° on Friday down to 49° overnight on Tuesday. Models drop roughly 0.95 in of precipitation across the stretch — watch Sunday (92%). No watches or warnings are active for the area right now. Right now Williamsport is running about 19° warmer than Rochester. Longer view: classic Northeast mix — nor'easters, humid spells and a glorious fall.
Williamsport, PA · Elev 518 ft · 41.24°N, 77.00°W · Pennsylvania · Forecast computed for these exact coordinates
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